Research Article Report from the PHLS Communicable Disease Surveillance Centre. Public Health Laboratory Service. Br Med J (Clin Res Ed) 1986; 293 doi: https://doi.org/10.1136/bmj.293.6557.1293 (Published 15 November 1986) Cite this as: Br Med J (Clin Res Ed) 1986;293:1293 Article Related content Metrics Responses Peer review This article has a correction. Please see:Report from the PHLS for August and September - November 22, 1986 This is a PDF-only article. The first page of the PDF of this article appears below.