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. 1968;39(2):271–275.

Age distribution of antibodies to animal influenza A viruses in human sera

A S Gorbunova, T V Pysina
PMCID: PMC2554557  PMID: 5303408

Abstract

A total of 394 sera from persons in different age-groups among the inhabitants of the Vladivostok area were studied by the haemagglutination-inhibition (HI) test for the presence of influenza antibodies. Each serum was examined against 12 antigens of influenza A virus of human (A0, A1, and 2 strains of A2) and animal (1 swine, 2 equine and 5 avian strains) origin. All the sera were collected 8-9 months after the outbreak of A2 influenza in 1965. Antibodies to some animal viruses were present: Swine/Iowa, Equi/2/Miami, Tern/South Africa and Chicken/Scotland strains; negative results were found to Equi/1/Prague, Duck/England and Duck/Czechoslovakia and fowl plague strains. The pattern of HI antibody distribution to animal strains showed an increase in the range in relation to age; the largest was found in the older age-group (70 years and over).

The authors suggest that antibodies in the human sera to animal strains are not necessarily an indication of past infection with those strains.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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