No author listed. Communicable Diseases Intelligence volume 5 issue 9 - 8 May 1981 - whole issue. Commun Dis Intell (2018) [Internet]. 1981 May 8 [cited 2026 Apr. 8];5:1-12. Available from: https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/3171