A SEROLOGICAL SURVEY OF INFLUENZA-A ANTIBODY IN HUMAN AND PIG SERA INCALCUTTA

A study was undertaken with a view to assess the distinct pattern of s ero-prevalence of influenza A viruses in the city of Calcutta populati on during the years of 1981-90. Concurrently, based on the fact of inc reasing pig population, a study was carried out to establish the activ ity of the human influenza A virus among pigs with a view to the poten tial threat of emergence of a new strain of influenza A virus that may surface following co-infection with swine and human influenza A virus es. The percentage positivity of the H3N2 antigen was found to be high est (46 %), followed by H1N1 (43 %), H2N2 (35 %) and H0N1 (19 %). A si milar pattern was noted with pig sera.