The study demonstrated a 19% incidence of influenza B infection among volunteers between December 1954 and March 1955.
Offers historical incidence benchmark; leaves open relevance to contemporary influenza epidemiology.
MEDICAL JOURNALof this investigation are reported, with particular reference to influenza and adenoidal-pharyngealconjunctival virus infections.Specimens of blood were taken from 1,001 volunteers in December, 1954, and again from 711 of these in March, 1955.Evidence of influenza B infection was found in 134 (19%) of those from whom two specimens were taken, the proportion in individual stations varying from 4 to 43 %.A few cases of influenza A infection were detected, but only two volunteers showed evidence of A.P.C. virus infection.
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Altman et al. (1956) studied this question.
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