NO AUTHOR LISTED. Communicable Diseases Intelligence volume 5 issue 2 - 30 January 1981 - whole issue. Communicable Diseases Intelligence, [S. l.], v. 5, p. 1–11, 1981. Disponível em: https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/3163. Acesso em: 10 apr. 2026.