Abstract
2,979 sera were collected from slaughtered swine in two geographic areas of Spain from 1987 to 1989. They were tested for antibodies against an H1N1- and H3N2-influenza virus by haemagglutination-inhibition tests (HI). The percentage of positive sera was higher in area I (78%-69.2%) than in area II (63.1%-60.4%) for both viruses respectively. The coexistence of high titres to both H1N1- and H3N2-influenza virus became apparent in cold months simultaneously in each area, although influenza viruses circulated in the Spanish swine population for two years. Also this study suggests the possible circulation of A/Texas/1/77-like strains in Spain, results which have not been reported before.
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Schedule a callMore From: Zentralblatt fur Veterinarmedizin. Reihe B. Journal of veterinary medicine. Series B
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