No author listed. Communicable Diseases Intelligence volume 5 issue 24 - 4 December 1981 - whole issue. Commun Dis Intell (2018) [Internet]. 1981 Dec. 4 [cited 2026 Apr. 12];5:1-13. Available from: https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/3186