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. 1971 Feb 27;1(5747):475-9.
doi: 10.1136/bmj.1.5747.475.

Epidemiology of the Hong Kong-68 variant of influenza A2 in Britain

D L Miller, M S Pereira, M Clarke

Epidemiology of the Hong Kong-68 variant of influenza A2 in Britain

D L Miller et al. Br Med J. .

Abstract

Two influenza epidemics in Britain in 1968-9 and 1969-70, were due to the Hong Kong/68 variant of influenza A2 virus. The first epidemic was prolonged with low morbidity and mortality rates; the second was sharp with high rates. The difference between total morbidity and mortality in the two epidemics, however, was less than it appeared to be-the estimated excess morbidity and mortality due to all causes in 1969-70 was only about 50% greater than in 1968-9.Antibody studies showed that about one-quarter of two groups of adults investigated were infected in the first epidemic and about one-third in the second. After the two epidemics about one-third still had no antibody to the A2/Hong Kong/68 virus.

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References

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