No author listed. Communicable Diseases Intelligence volume 5 issue 17 - 28 August 1981 - whole issue. Commun Dis Intell (2018) [Internet]. 1981 Aug. 28 [cited 2026 Apr. 23];5:1-16. Available from: https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/3179