Letters Unnecessary universal BCG in UK

Efficacy of BCG: three quarters full or one quarter empty?

BMJ 2009; 338 doi: http://dx.doi.org/10.1136/bmj.b635 (Published 17 February 2009) Cite this as: BMJ 2009;338:b635
  1. David J M Lewis, professor of clinical vaccinology and medicine1
  1. 1St George’s, University of London, London SW17 0RE
  1. d.lewis{at}sgul.ac.uk

    Davies states that BCG is “not a very effective vaccine” because a single immunisation gives “only 75% protection … for a maximum of only 15 years.”1

    This overtly pessimistic interpretation (“it protected only three out …

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