July 1997
For further information, journalists can contact 1) Health Communications and Public Relations, WHO, Geneva, tel. (4122) 791 2599, fax (4122) 791 4858; 2) the Division of Emerging and other Communicable Diseases Surveillance and Control (EMC), WHO, Geneva, fax (4l22) 79l 4893; phone (4122) 79l 2531; e-mail: cosivio@who.ch.
All WHO Press Releases, Fact Sheets and Features can be obtained on Internet on the WHO home page http://www.who.ch//
© WHO/OMS, 1998