NO AUTHORS LISTED. Communicable Diseases Surveillance: CDI volume 20 issue 21 (1996). Communicable Diseases Intelligence, [S. l.], v. 20, p. 466–474, 1996. DOI: 10.33321/cdi.1996.20.76. Disponível em: https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/1894. Acesso em: 20 apr. 2026.