|Counselling and Voluntary HIV Testing for Pregnant Women in High HIV Prevalence Countries - Elements and Issues (UNAIDS, 1999, 24 p.)|
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Joint United Nations Programme on HIV/AIDS
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UNAIDS/99.44E (English original, October 1999)
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For many years, little was known about preventing transmission of HIV infection from mother to child. Recently, however, many advances have been made in developing effective and affordable interventions that reduce the likelihood that a woman will pass HIV on to her baby.
The two most important interventions - the provision of antiretroviral drugs and the avoidance of breastfeeding - only apply to HIV-positive women. Both therefore require that a woman know whether she is infected by HIV. And yet in the developing countries, where 95% of mother-to-child infections take place, there are very few counselling and testing services that allow a woman to find out her HIV status.
HIV counselling and testing in relation to pregnancy and other reproductive health services may prove a valuable entry point for provision of counselling and voluntary testing to the wider community of healthy and asymptomatic women and their partners. Some reproductive health settings such as STD clinics, paediatric services and family planning clinics may provide an opportunity to offer testing to potential mothers and fathers of further children, while antenatal services will allow testing to be offered to women already pregnant and their partners.
Counselling and voluntary testing for HIV have benefits beyond the prevention of transmission from mother to child. Counselling services have been slow to gain acceptance in many countries, especially where HIV is heavily stigmatized and access to services and support for the HIV-infected is limited. Indeed, HIV testing has often been used as a diagnostic tool to confirm symptomatic AIDS. But a growing number of studies attests to the value of counselling and voluntary HIV testing in largely healthy populations. These services have been shown to contribute to an increase in safe behaviour at the individual level, and are likely also to reduce the ignorance, fear and stigma associated with HIV infection in the population at large.
Few countries have actively promoted counselling services and few have yet developed clear national guidelines on the provision of counselling and voluntary HIV testing in reproductive health service settings. However, service provision does not grind to a halt just because there are no clear guidelines. That means that facility managers have to make difficult decisions without guidelines, and often with incomplete information. This document aims to provide guidance on the counselling and HIV testing for managers of antenatal clinics and other pregnancy-related services, whether they are public, private or non-profit. It may also be used as a basis for discussions in developing a national policy in this increasingly important area.
The document gives an overview of the magnitude of the problem of HIV transmission from mother to child. It then focuses on the benefits of counselling and voluntary HIV testing in the context of pregnancy, and discusses the content of such counselling. Operational issues and potential difficulties in setting up and maintaining such a service are explored.
· HIV can be passed from mother to child in the womb, during childbirth or through breastfeeding.
· In developing countries with no interventions, over a third of HIV-positive mothers will generally pass HIV infection on to their babies.
· Avoiding breastfeeding can cut the risk of transmission to between 20% and 25%.
· The provision of the antiretroviral drug ZDV (or zidovudine) for the last four weeks of pregnancy and during labour can further cut the risk of transmission to under 10% if women also avoid breastfeeding. Feasibility and effectiveness of this type of therapy, known as short course ZDV, are being tested in developing countries where breastfeeding is the norm. It is important also to note that a short course of antiretroviral drugs during pregnancy, while increasing the chance that she will give birth to an uninfected baby, does no harm to the health of an HIV-positive woman. The only possible risk is anaemia. But anyone taking antiretroviral drugs for HIV should be screened for this condition in advance, and treated for it if necessary. Concern is sometimes expressed that the strategy might encourage the development of drug-resistant strains of HIV. However, the risk of resistance developing is minimal with such a short period of drug use.
· Other, even shorter antiretroviral regimens are being tested. Preliminary results show that therapy beginning at labour and given for one week after delivery may also be effective in cutting transmission of HIV from mother to infant.
· A longer and more complex course of ZDV known as ACTG 076 can reduce mother-to-child transmission of HIV to around 5% in women who do not breastfeed. This therapy is common in industrialized countries. However, it is too expensive and difficult to administer for routine use in developing countries where both fertility and HIV prevalence are high and resources are limited.
· Delivery by Caesarean section in women on AGTG 076 who do not breastfeed has been shown to reduce the risk of transmission to about 1%. This procedure is difficult to undertake safely where health infrastructure is limited. The risks associated with sepsis following this operation are greater in HIV-infected than in HIV-negative women.
· Vitamin supplementation, cleansing of the birth canal and avoiding invasive procedures during delivery may all help reduce the risk of transmission of HIV from mother to child. Since the presence of other STDs may increase the risk of a woman passing HIV infection on to her child, screening and treatment of STDs other than HIV may also reduce transmission rates. Research on these interventions continues. However, they are relatively cheap and beneficial to all women regardless of their HIV status.
For most people working in maternal and child health, the answer to this question is self-evident. However, it is worth reviewing just how much illness and death could be averted by reducing transmission from mother to child.
· 2.7 million children under the age of 15 have died of AIDS since the beginning of the epidemic. Over 9 in 10 were infected by their mother at birth or during breastfeeding.
· Another 1.1 million children are currently living with HIV, and 1600 more are infected every day. Almost all of those new child infections are in developing countries, 90% in sub-Saharan Africa alone.
· AIDS deaths are reversing gains in child health and survival. Forecasts for Zimbabwe in 2010, for example, show that AIDS is expected to push the infant mortality rate 138% higher and the under-five mortality rate 304% higher than they would have been in the absence of AIDS. In CdIvoire, child mortality will rise by over two-thirds.
· Caring for HIV-infected children carries heavy costs for families and health systems. In Soweto, South Africa, for example, one-third of paediatric hospital admissions are HIV-related.
Sick children, healthy children and orphans
Another concern is the idea that introducing this strategy for the prevention of MTCT might exacerbate the problem of orphaned children, increasing the burden of care on families and society. It is widely assumed that children born to HIV-infected mothers do not survive long enough to become orphans. But this is a misconception: even in the absence of intervention the great majority are still alive at their fifth birthday and beyond and are highly likely to survive their infected mothers. The most likely effect of introducing the strategy, therefore, will be to alter the proportion of orphans who are HIV-infected compared with those who are uninfected.
The intervention does not therefore affect in any significant way the need for societies to make provision for their orphaned children. However, from the point of view of planning for care and allocating resources, it is important to recognize that, with measures to reduce MTCT, many fewer orphaned children will be HIV-infected and in need of medical care and support, many of them long-term. It is also worth noting that improving perinatal care and diagnosing HIV infection to permit early access to care may prolong the life of mothers. Thus, their children will have the care of their mothers and be spared the misery and vulnerability of orphanhood for longer.
The stigma of dead children
In many societies where children are highly prized, a woman who bears unhealthy children or whose children repeatedly die faces ostracism within the family and the community. This stigma can be avoided through interventions and family support that help her to bear and raise healthy children.
The most effective interventions to reduce transmission from mother to child depend upon a woman knowing her HIV status, and that in turn depends upon the availability of information, counselling and voluntary testing services.
It is not necessary to wait until the full range of services is on offer before integrating HIV-related information, counselling and voluntary HIV testing into routine pregnancy care. At the very least, women can be provided with information about reducing their and their partners exposure to HIV infection, and about avoiding unwanted pregnancies. Health professionals can also ensure services before and during delivery that minimize the childs exposure to HIV infection.
Pre-test information and counselling and post-test counselling will differ according to the needs of the client. The following sections discuss issues that should be considered in pre-test counselling for individuals and couples. The post-test information and counselling needs of HIV-positive and HIV-negative women and their partners are discussed separately.
Pre-test information and counselling: a summary
· Information about the sexual transmission of HIV and how to prevent it
· Counselling for risk assessment
There is a great deal that women (and their partners) need to know before making a decision to be tested for HIV. Much of it is straightforward information that can be imparted in groups. Reaching a decision is, however, not easy. After basic information has been given, people will need counselling at an individual level to help them assess their level of risk and consider the implications of a positive or negative result in their own situation, before deciding whether or not to be tested.
Pre-test counselling has sometimes been dismissed as relatively unimportant - it is sometimes skipped entirely or performed by rote in a way that leaves no room for interaction or discussion of the implications of testing in relation to an individuals own health, reproductive, marital or social situation. This is partly because the bulk of experience comes from dedicated counselling and testing centres, to which most clients come only after they have already made the decision to be tested. At reproductive health facilities, the situation is very different. Many women and their partners will never have considered being tested - indeed some will have only very limited knowledge about HIV and AIDS. In these situations, it is likely that the quality of pre-test information and counselling will be a determining factor in whether or not people choose to take an HIV test. For pregnant women, this decision is likely to affect the interventions available to them and therefore their chances of bearing and raising a healthy child.
Men attending reproductive health services including STD services should receive counselling about HIV transmission and prevention. This information should include a discussion about transmission from mother to child. Counselling about fertility decisions and contraceptive services should be given. Pre-test counselling should stress the benefits of couple counselling. Since the vast majority of clients for reproductive health services continue to be women, however, this paper will focus on the counselling and information needs of women attending reproductive health services.
Information about HIV transmission and prevention
Since a child cannot be infected by an HIV-negative mother, the most effective way of avoiding HIV transmission from mother to child is to prevent new HIV infections among potential mothers. The starting point for all pre-test information and counselling should therefore be basic information about HIV transmission and prevention. Young women and men presenting at reproductive health services should all receive information about the sexual transmission of HIV and how to prevent it as well as information about the transmission of the virus from mother to child. Helping HIV-positive couples to avoid an unwanted pregnancy will also cut the likely number of new infections.
Information about the HIV test and about confidentiality
Clients at reproductive health services should be given information about the HIV testing procedure itself, including the accuracy of the tests, confirmatory procedures, and the window period for antibody development. Practical details about blood sampling, the cost of a test and the length of time until results are available should be discussed.
Clients must be told clearly that an HIV test is entirely voluntary. While interventions such as the provision of ZDV or breast-milk substitutes cannot be provided to women whose HIV status is not known, refusing a test should not affect access to other standard antenatal care or reproductive health services.
It is vital that clients understand that HIV test results will be entirely confidential. Women must know and believe that they alone control disclosure of their test results to themselves, to other health staff, or to their partners, families or friends. Results will not be revealed to anyone else (including other health care providers) without the clients permission.
Counsellors should also discuss shared confidentiality and the benefits of couple counselling. Access to some effective interventions to reduce HIV transmission may depend upon the support of a partner. Counsellors should offer to refer women and their partners to other counselling and testing services in cases where a man, for cultural or other reasons, is unlikely to attend the health facility providing services to his wife or partner.
Counselling to assess the risk of infection
In pre-test counselling, individuals should be given an opportunity to assess their own risk of infection together with a counsellor.
There is currently some evidence that, in highly stigmatized societies, women who believe themselves to be at high risk of infection are less likely than low-risk women to choose to be tested for HIV infection or to come back for their test results. Since the potential benefits of knowing ones HIV status in the context of childbearing are greater for HIV-infected women, counsellors should take particular care to explain the benefits to women whose self-assessment suggests that they are at elevated risk of being HIV-infected.
The benefits of an HIV test and the implications of the results
Unless women and their partners fully understand the benefits of an HIV test, they are unlikely to choose to have one. A discussion of the benefits of testing is necessarily linked to a discussion about the implications of a positive or negative result.
A negative result allows an individual to act to avoid infection in the future. It will also allow a woman to breastfeed, confident in the knowledge that it is best for her child.
The implications of a positive result will depend upon the interventions available. Information about existing interventions to reduce transmission of HIV from an HIV-positive mother to her children should be given during pre-test counselling to help women weigh up the potential costs and benefits of having a test. Women should be told that, in the absence of any intervention, less than half the babies born to HIV-positive women will contract the virus from their mother. Intervention can reduce that fraction to below 10%. However, it should be clear to a woman that the most effective interventions cannot be made available to women whose HIV status is not known.
Clients should also be told that a positive result will allow them to make important decisions about their own lifestyle, nutrition and health care, decisions which may have a major impact on their survival, even in places where antiretroviral combination treatments are not available.
The potential downside of HIV testing
Clients must be given clear information about the potential downside of HIV testing. Where interventions are unavailable or where a woman or a couple judges them to be unaffordable, clients may decide that the benefits to testing are limited. Where breastfeeding is universal, privacy is limited and breast-milk substitutes are expensive, it may be impossible for an HIV-positive woman to choose alternatives to breastfeeding without advertising her HIV status to her family or community. Counsellors should discuss with a woman the likelihood that she will be ostracized, divorced or otherwise discriminated against if her HIV status is revealed. It may be that the risks of disclosure of HIV status to the broader welfare of both mother and infant far outweigh the likely benefits of HIV testing. Counsellors should discuss these issues with clients individually. Whatever the counsellors own assessment, however, they should always offer testing, and always support a woman in her decision to be tested or not.
The decision to be tested for HIV will never be easy. But because there are now clear benefits to knowing ones HIV status during pregnancy, counselling and HIV testing in reproductive health settings provide perhaps the greatest incentive for women and their partners to take the difficult decision to find out their HIV status.
Pre-test information and counselling for HIV-negative women: a summary
· Information to prevent future infections
· Importance of sustained and exclusive breastfeeding for infant health
In even the highest HIV prevalence countries, most pregnant women are not HIV-infected. For some, the process of testing will raise important and personal issues about sexual and domestic relationships that may need to be resolved through further discussion (perhaps with the partner). A negative result should never be presumed to identify a lack of anxiety or of a need for further counselling. Information and counselling for HIV-negative women should concentrate on preventing future infection.
Preventing future infections
Where couples have been tested together and both are negative, information given in pre-test counselling about prevention of sexual transmission of HIV should be reinforced and the particular importance of avoiding infection during pregnancy and breastfeeding should be stressed.
Research in Malawi suggests that women may be at high risk of HIV infection soon after childbirth. This may be because their husbands or partners have sex with other partners during a womans pregnancy or the abstinence that often follows it, becoming infected at that time and passing on the new infection as soon as sexual relations with the new mother resume. This represents a double danger if the mother is still breastfeeding, since there is a very high likelihood of transmitting infection to the infant when the mother carries the high viral load associated with new HIV infections.
Where a partner is infected, or where his serological status is not known, the importance of prevention information and counselling is greater still. Information on where to get condoms and other contraceptive means should be given.
Ensuring healthy feeding practices
A negative test result also creates an opportunity for the active promotion of exclusive and sustained breastfeeding among HIV-negative mothers.
Pre-test information and counselling for HIV-positive women: a summary
· Information about therapy options, including costs
· Information and referral for support, services and positive living
Information and counselling about therapy
Obviously, a positive test result is a prerequisite for the two interventions thought to be most effective in reducing transmission of HIV from mother to child: antiretroviral therapy and avoidance or abbreviation of breastfeeding. Where antiretroviral therapy is available, counsellors should explain its benefits and the importance of adherence to the regimen. They should also make clear that, while research continues, it is thought that the benefits of antiretroviral drugs may be diminished if a woman goes on to breastfeed her infant. Unless antiretroviral drugs are provided free, counsellors should discuss the cost of the therapy and help a woman assess her familys ability to bear the cost of a full regimen.
Information and counselling about infant feeding
Full information about infant feeding options is essential for all HIV-positive mothers-to-be, regardless of whether antiretroviral drugs are available. Pregnant women should be reminded that less than half all babies born to HIV-positive mothers and breastfed will be infected with HIV. Of those that do become infected, at least a third are likely to have contracted the infection while being breastfed. Women should also understand that breastfeeding protects against a wide range of other childhood diseases. Women should be given information about the alternatives to breastmilk, and what two years of substitute feeding is likely to cost. The importance of access to clean water, fuel and feeding implements if they choose substitutes to breastmilk should also be discussed.
Counsellors should discuss the possibility that choosing substitute feeding might label a woman as HIV-positive in the eyes of her family or her community. Counsellors should help a woman analyse her social situation and family resources and weigh up the best feeding option for her baby. A mother must decide what the best option is in her own situation; counsellors should provide all possible support for a womans decision.
Information and counselling about fertility regulation
In many high HIV prevalence countries, bearing healthy children provides social status and access to family resources - access denied to women whose HIV-infected children sicken and die. To that extent, interventions to reduce HIV transmission from mother to child can help a woman consolidate her social position, despite her HIV infection.
While women and couples should be free to make their own decisions about child-bearing, counsellors should ensure that women are aware of the risks inherent in any future pregnancies, as well as the risk of passing on the virus during unprotected sex. Counsellors should make it clear that even where interventions are available, all pregnancy carries some risk of HIV transmission from mother to child. And the risk of transmission grows as the mothers infection progresses, so it is likely to grow from one pregnancy to the next. What is more, the effectiveness of anti-retroviral therapy in successive pregnancies is unknown.
Women who choose to avoid pregnancy in the future because of their HIV infection should be referred to family planning services. Women who choose two years of replacement feeding should also receive advice on contraception to replace the birth-spacing effect of breastfeeding. If they choose to bear more children, they should be encouraged to delay the pregnancy for at least two years.
Counselling about shared confidentiality
While health service providers must guarantee confidentiality of test results, they should recognize that the burden of secrecy can be detrimental to peoples ability to live positively with their infection. Counsellors should help HIV-positive clients decide who, if anyone, to share information about their status with. Counsellors should never themselves disclose test results to anyone else except at the express request of the client.
Counsellors should discuss the potential pluses and minuses of sharing test results with other people. Sharing a positive test result with a partner may expose a woman to ostracism. It may, on the other hand, allow her to make otherwise impossible choices about childbearing and care. Sharing results with other family members can provide psychological support as well as necessary care and help in planning for the future. Sharing results with other health care workers can ensure that a woman receives the best information and care possible for herself and her child over the course of her pregnancy and eventually her illness. Sharing results with other HIV-positive people in support groups can contribute to knowledge and coping skills.
Information to prevent the further spread of HIV
Information on preventing the sexual transmission of HIV is every bit as important for HIV-positive as for HIV-negative clients. Staff counselling HIV-infected women should reinforce information provided in pre-test counselling, stressing the risk of passing infection on to present and future sexual partners, discussing negotiation of safer sex with those partners and providing information about sources of free or affordable condoms.
Information about the natural history of HIV infection, well-being and care
In many countries, a positive HIV test result is equated in peoples minds with near-immediate sickness and death. Correcting this misconception is an important aspect of counselling. Counsellors should discuss the natural history of HIV infection including the long latency period and common opportunistic infections.
Counselling and voluntary testing services attached to reproductive health services are an important entry point to the continuum of care. But it must be recognized that HIV-related counselling is not the primary objective of these services. They are unlikely to be able to provide as much follow-up counselling or support as clients need. Counsellors at reproductive health facilities should therefore provide referrals to support groups or other sources of information about care and about living positively with HIV.
Potential mothers and fathers
Counselling and voluntary HIV testing can help women and men who may be considering forming or expanding their families to:
· weigh up the risks and advantages of a pregnancy
Pregnant women who test HIV-negative
Counselling a woman following a negative test can help a woman
· understand and maintain safe behaviour to avoid future infection
Pregnant women who test HIV-positive
Counselling a women following a positive test can help a woman
· decide whether to share her HIV status with anyone, and if so with whom
Partners of pregnant women
Counselling and voluntary testing of partners of pregnant women helps couples
· support one another in decisions about care and infant feeding
The wider community
Widespread availability and use of counselling and voluntary testing for HIV in a community can
· reduce fear, ignorance and stigma surrounding HIV
· reduce spillover of artificial feeding to HIV-negative mothers
Providing counselling and voluntary testing for HIV in pregnancy-related services is easier said than done. While such services are clearly desirable wherever interventions to prevent HIV infection in infants and sex partners of pregnant women can be offered, they will add to the cost of antenatal and reproductive health services.
This section of the document considers what is necessary to provide such services, and makes recommendations about staff training, counselling options and test types. It tries to focus on the feasible, rather than the ideal.
In most developing countries, specialist counsellors are in short supply. And there is unlikely to be enough money available to train and hire as many specialist counsellors as would be needed in the context of routine antenatal care.
It is recommended, rather, that existing reproductive health staff be trained in the basics of counselling and testing for HIV. They are already familiar with many of the issues surrounding reproductive health and infant feeding. Training existing staff to provide additional advice on HIV care and prevention in the context of pregnancy may be easier that training professional counsellors to deal with all the medical questions that may arise around the subject of reproductive health and childbearing. However, extra staff will probably need to be hired to cope with the extra volume of work created by providing counselling and HIV testing services.
The work of providing information and of counselling should be diffused as efficiently as possible though the hierarchy of care, according to the particular needs of each client. Much of the routine provision of basic information about HIV transmission, prevention and testing for example, can be done in groups and carried out by staff with little special training in counselling. For more complex issues - analysis of resources in helping HIV-infected mothers reach feeding decisions, or counselling of discordant couples, for example - specialized counsellors may be needed and discussion with clients on a one-to-one basis will be essential. Regular staff should be able to refer those in need to progressively more specialized levels of counselling. The more specialized counselling may be provided by dedicated voluntary counselling and testing centres outside the reproductive health facility. Facility managers will need to identify services to which they can refer clients, and would be well advised to discuss their clients needs with key staff in those services.
Health workers will need additional training in all the basic areas of pre- and post-test counselling if they are to provide useful HIV-related counselling to women contemplating a test or digesting its results. In addition, they may need extra training to help them deal non-judgmentally with clients in often difficult situations. Perhaps most importantly, health workers need a rigorous understanding of the importance of confidentiality.
Counselling needs vary according to the situation. It is often not necessary (and more often still not affordable) to impart all the necessary information to each woman in individualized in-depth pre- and post-test counselling sessions. The majority of women who test HIV-negative need less individualized post-test counselling than women who test positive, for example.
These varying needs should be taken into account in designing counselling and testing services. The reality is that if counselling and testing for HIV is to become a routine part of already overstretched reproductive health services in low resource, high-fertility countries, the degree of individualized attention provided is likely to fall short of the ideal.
Routine information that is relevant to all women and their partners regardless of HIV status may be imparted in group sessions. This is especially true of information provided before a test. Individualized counselling will be needed to answer specific questions that arise from the information, as well as to help women weigh up their particular situations and arrive at a decision about testing. A client should always be able to communicate their decision about whether to be tested or not in private.
Some post-test information, such as reinforced prevention information relevant to all clients regardless of HIV status, can also be given in groups. However the balance between general information needs and counselling needs is different for clients who have chosen to undergo a test and are receiving their results.
Pregnant women who are HIV-infected may need considerable individualized attention to help them arrive at decisions on information imparted in groups. All women who test HIV-positive should receive individual counselling to help them reach important decisions about therapy, infant feeding, sharing their status and other aspects of living with infection.
Information on video
Obviously, human interaction and especially individualized attention are the ideals in both providing information about HIV as well as in counselling clients. But limitations of time, money, space and personnel are likely to make these the exception rather than the norm in reproductive health settings in developing countries.
Much of the basic information people need when making decisions about sexual behaviour and fertility in the context of HIV does not vary according to context. Basic information about HIV infection, prevention, therapy and infant feeding can be imparted successfully on video, as experience in antenatal clinics in Thailand has shown. These videos have the advantage that their accuracy is assured and they are guaranteed to be informative and non-judgmental - not always the case where individual counsellors are involved.
Where information is imparted by video (or in group counselling sessions), people must always be given the opportunity to ask questions and discuss individual problems and circumstances in private with a trained counsellor.
Obviously, this option is not open to sites that have no electricity or video equipment, and is unlikely to be necessary or desirable in low-volume sites. Service providers will have to weigh up the one-time cost of video-equipment versus the recurrent costs of counsellors salaries and make decisions accordingly.
Ideally, women and their partners would go through the whole pre-test counselling, testing procedure and post-test counselling together. However since men very rarely present together with their wives or partners at reproductive health facilities, this is unlikely to be practical.
It is recommended that counsellors discuss the benefits of couple counselling with women during pre-test counselling sessions. Those women who would like to be counselled and tested together with their partners can be referred to specialized counselling and testing services. In this case, a mechanism must exist for communicating test results to the original service providers with the consent of the couple and without breaching confidentiality.
Visiting a clinic often requires considerable travel time and expense. Adding to this burden by requiring a woman who has chosen to be tested to return for her HIV test results may be unhelpful. It is likely to result in a high proportion of women not returning to collect their results - a waste of time and resources from the point of view of the service provider. In addition, sending specimens to a laboratory for testing can lead to lost samples and uncertain quality control.
Reliable rapid test kits for on-the-spot testing for HIV are now widely available at prices similar to laboratory test kits. These kits do not need highly trained staff or sophisticated laboratory equipment, although most do require refrigeration. Training clinic staff to use these kits can cut down on time and paperwork involved in sending specimens for lab testing, and can avoid doubling travel time for clients. In terms of quality, they have been shown to be as reliable on a national level as laboratory testing services.
There are, however, some difficulties associated with rapid test kits. Firstly, on-the-spot testing may provide more opportunities for breaches of confidentiality than outside laboratory testing. The need to maintain confidentiality should be central to all staff training around testing and counselling for HIV.
Secondly, it is possible that women will feel obliged to undergo a test offered on the spot, without having thoroughly thought through the consequences. They may also want to discuss the implications of testing with their partners, and opt for couple counselling and testing. It is therefore suggested that women are told about rapid testing during the pre-test counselling, and are then given the opportunity to make an appointment to come back at a convenient time if they decide they want to go ahead with the test. More information on rapid tests is available in the WHOs Weekly Epidemiological Record (1998, 73:321-326).
Since counselling and voluntary testing for HIV has so rarely been offered as a routine part of pregnancy-related services in developing countries, there are few data upon which to base discussions of cost.
Even the cost of therapy is uncertain in this rapidly developing field. Short course therapy requires no very sophisticated monitoring or delivery equipment. The WHO has added ZDV to the Essential Drug List, and the drugs manufacturer Glaxo-Wellcome is in the process of cutting the price of ZDV (under the generic name zidovudine) to developing countries. Month-long therapy for one women is expected to cost around US$ 50 in the poorest countries, although countries with more resources can expect to pay more. Even shorter regimens now being tested are likely to be considerably cheaper.
The cost of breastmilk substitutes varies considerably from country to country (from US$ 60 to US$ 450 per 6 months)1. Often, high import duties on infant formula milk raise the price to the consumer considerably. Additional costs associated with the use of breastmilk substitutes are the costs of fuel, clean water, clean implements and preparation time.
1 HIV and Infant Feeding: A guide for health care managers and supervisors. UNAIDS/98.4
There is virtually no information at all to quantify non-monetary costs and benefits associated with interventions to reduce HIV transmission from mother to child; costs such as increased stigma or improved child survival. In this section, costs refers only to monetary costs.
Some work has been done to investigate the costs of providing counselling and voluntary testing, although not in reproductive health settings. The cost per person counselled ranges between US$ 4 and 12. The majority of that is in training and salaries for staff. Since it is here suggested that as much counselling as possible be done by regular staff in reproductive health settings, the cost may be expected to be rather low.
What is clear is that the costs will be shared between service providers and their clients. The extent to which service providers pass costs on to their clients will depend on many factors, including market demand.
Costs and benefits to pregnant women and their families
In most situations, pregnant women and their families will bear the bulk of the monetary costs associated with interventions to reduce transmission of HIV to their infants. For women who test HIV-positive, that includes the cost of therapy as well as the cost of two years worth of replacement feeding and the time, water, fuel and implements needed to prepare and deliver them.
Women may also have to pay for testing and post-test counselling - the demand for these services will certainly be influenced by the cost.
The major financial return for a family in averting the transmission of HIV from mother to child is the savings in medical bills and care for sick children, and funeral costs. The non-monetary benefits of bearing and raising a healthy child are incalculable.
Costs and benefits to the service provider
If providers of pregnancy-related services are to integrate counselling and voluntary testing for HIV into their routine work, they will have to absorb most of the costs of establishing the service.
The bulk of those costs are likely to be in staff training, and in the recruitment of staff to help with the extra workload implicit in providing an integrated counselling and testing service. Test kits must be procured or laboratory services contracted; these costs may or may not be passed on to the client, although the service is unlikely to be sustainable unless some cost recovery is planned for. Some investment will also be required in setting up systems to ensure the confidential treatment of HIV-related data.
Where health services are provided by the public sector, a return can be expected in terms of lower costs of caring for HIV-infected children. This is especially the case in countries where health services are routinely provided free to infants and children under the age of five.
UNAIDS. HIV Transmission from Mother to Child, Technical Update, Geneva, UNAIDS, October 1998
Prevention of HIV Transmission from Mother to Child: Planning for Programme Implementation, Report from a Meeting, Geneva, 23-24 March 1998, UNAIDS
Prevention of HIV Transmission from Mother to Child: Strategic Options, Geneva, UNAIDS, 1999
UNAIDS. AIDS 5 Years since ICPD: Emerging issues and challenges for women, young people and infants, UNAIDS Discussion Document, Geneva, UNAIDS, 1999
HIV counselling and testing
The importance of simple/rapid assays in HIV testing: WHO/UNAIDS recommendations. Weekly Epidemiological Record, 1998, 73:321-328
WHO/UNAIDS recommendations on the safe and effective use of short-course ZDV for prevention of mother to child transmission of HIV. Weekly Epidemiological Record, 1998, 73:313-320
UNAIDS, WHO. Guidance modules on antiretroviral treatments. Module 6: The use of antiretroviral drugs to reduce mother to child transmission of HIV. Geneva, UNAIDS/WHO, 1998, UNAIDS/98.7
HIV and infant feeding
UNICEF, UNAIDS, WHO. HIV and Infant Feeding: A review of HIV transmission through breastfeeding. Geneva, UNAIDS, 1998, UNAIDS/98.5
UNICEF, UNAIDS, WHO. HIV and Infant Feeding: Guidelines for decision-makers. Geneva, UNAIDS, 1998, UNAIDS/98.3
UNICEF, UNAIDS, WHO. HIV and Infant Feeding: A guide for health care managers and supervisors. Geneva, UNAIDS, 1998, UNAIDS/98.4
WHO, UNAIDS, UNICEF. Technical Consultation on HIV and Infant Feeding Implementation Guidelines, Report from a Meeting, Geneva 20-22 April 1998, UNAIDS, 1998 HIV and Infant Feeding: A UNAIDS/UNICEF/WHO policy statement. Geneva, UNAIDS, 1997
Planning, implementation and monitoring and evaluation
Vertical Transmission of HIV - A rapid assessment guide, 1998
Local Monitoring and Evaluation of the Integrated Prevention of Mother to Child HIV Transmission in Low-Income Countries, 1999
MTCT prevention in Asia
Thaineua V et al. From research to practice: use of short-course zidovudine to prevent mother-to-child HIV transmission in the context of routine health care in Northern Thailand. South East Asian Journal of Tropical Medicine and Public Health, 1998, 29(3):429-442
MTCT prevention in Latin America
Prevention of vertical transmission of HIV. Report from a workshop, Buenos Aires 29-31 July 1998
MTCT prevention in Africa
The Zimbabwe Mother-to-Child HIV Transmission Prevention Project: Situation Analysis
The Joint United Nations Programme on HIV/AIDS (UNAIDS) is the leading advocate for global action on HIV/AIDS. It brings together seven UN agencies in a common effort to fight the epidemic: the United Nations Childrens Fund (UNICEF), the United Nations Development Programme (UNDP), the United Nations Population Fund (UNFPA), the United Nations International Drug Control Programme (UNDCP), the United Nations Educational, Scientific and Cultural Organization (UNESCO), the World Health Organization (WHO) and the World Bank.
UNAIDS both mobilizes the responses to the epidemic of its seven cosponsoring organizations and supplements these efforts with special initiatives. Its purpose is to lead and assist an expansion of the international response to HIV on all fronts: medical, public health, social, economic, cultural, political and human rights. UNAIDS works with a broad range of partners - governmental and NGO, business, scientific and lay - to share knowledge, skills and best practice across boundaries.
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