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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
immunology and microbiology
Seroepidemiological evidence of avian H4, H5, and H9 influenza A virus transmission to pigs in southeastern China
Veterinary Microbiology, Volume 88, No. 2, Year 2002
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Description
Pig serum samples collected in southeastern China were examined for antibodies to influenza A viruses. Since the hemagglutination inhibition (HI) test does not accurately detect antibodies to the hemagglutinins (HAs) of "avian" influenza viruses, we utilized the neutralization (NT) test to detect subtype-specific antibodies to the HA of avian viruses in pig sera. Neutralizing antibodies to H1, H3, H4, and H5 influenza viruses were detected in the serum samples collected in 1977-1982 and 1998, suggesting that pigs in China have been sporadically infected with avian H4 and H5 viruses in addition to swine and human H1 and H3 viruses. Antibodies to H9 virus, on the other hand, were found only in the sera collected in 1998, not in those collected in 1977-1982, correlating with the recent spread in poultry and subsequent isolation of H9N2 viruses from pigs and humans in 1998. The present results indicate that avian influenza viruses have been transmitted to pig populations in southeastern China. © 2002 Elsevier Science B.V. All rights reserved.
Authors & Co-Authors
Takada, Ayato
Japan, Tokyo
The University of Tokyo
Okazaki, Katsunori
Japan, Sapporo
Hokkaido University
Kida, Hiroshi
Japan, Sapporo
Hokkaido University
Statistics
Citations: 107
Authors: 3
Affiliations: 3
Identifiers
Doi:
10.1016/S0378-1135(02)00105-0
ISSN:
03781135