No author listed. Communicable Diseases Intelligence volume 5 issue 13 - 3 July 1981 - whole issue. Commun Dis Intell (2018) [Internet]. 1981 Jul. 3 [cited 2026 Apr. 13];5:1-11. Available from: https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/3175