NO AUTHORS LISTED. Communicable Diseases Intelligence volume 21 issue 4 - 20 February 1997-whole issue. Communicable Diseases Intelligence, [S. l.], v. 21, p. 41–56, 1997. Disponível em: https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/1042. Acesso em: 6 apr. 2026.