NO AUTHOR LISTED. Communicable Diseases Intelligence volume 5 issue 8 - 24 April 1981 - whole issue. Communicable Diseases Intelligence, [S. l.], v. 5, p. 1–15, 1981. Disponível em: https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/3170. Acesso em: 17 apr. 2026.