Letters

More than third of world's population has been infected with hepatitis B virus

BMJ 1999; 318 doi: http://dx.doi.org/10.1136/bmj.318.7192.1213a (Published 01 May 1999) Cite this as: BMJ 1999;318:1213
  1. A J Zuckerman, Director
  1. WHO Centre for Reference and Research on Viral Diseases, Royal Free and University College Medical School, University College London, London NW3 2PF

    EDITOR—The news items on the prevalence of hepatitis B infection is incorrect and the accompanying artificially coloured photograph is misleading.1 Electron micrographs are usually negatively stained (figure).

    Electron micrograph of hepatitis B virus (double shelled particle) and excess surface antigen protein (tubular forms and small spherical particles) (magnification ×252 000)

    More than a …

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