Letters

Selective evidence was used to support link between immunisation and asthma

BMJ 1999; 318 doi: https://doi.org/10.1136/bmj.318.7177.193a (Published 16 January 1999) Cite this as: BMJ 1999;318:193
  1. Osman David Mansoor, Public health physician.
  1. Ministry of Health, PO Box 5013, Wellington, New Zealand

    EDITOR—Blomfield says that there is accumulating evidence that immunisation causes asthma.1 But he presents only evidence supporting the hypothesis when there is also evidence against it.

    He quotes a retrospective cohort study …

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