No authors listed. Communicable Diseases Intelligence volume 17 issue 9 - 3 May 1993 - whole issue. Commun Dis Intell (2018) [Internet]. 1993 May 3 [cited 2026 Jun. 26];17:182-200. Available from: https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/2856