CONTROLLED TRIAL OF INFLUENZA VACCINE

AUTOR(ES)

Cook, P. B.

RESUMO

The employees of an oil company in southern England participated in the controlled trial of a saline polyvalent influenza vaccine. Of 981 volunteers, 681 received the vaccine and the remainder an indistinguishable inert control substance. The identity of the latter group was not disclosed until the incidence of influenza had been assessed. Three questionnaires were circulated in December 1963, February and April 1964 for this purpose.

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