COMPARATIVE STUDIES OF INFLUENZA (H_3N_2) ISOLATED FROM PIG AND HUMANⅠ. Analysis of Antigenicity and Polypeptide Structure of H_3N_2 Influenza Viruses
Abstract: Comparision of influenza A (H_3N_2) viruses isolated from pig and human in 19791932 in respect to antigenic analysis, SDS-polyacrylamide gel electrophoreses and haemagglutinin maps has been studied. The isolates from pigs each year were very closely related to contemporary human isolates. The surface antigens, HA and NA, as well as the matrix proteins (MP) and nucleoproteins (NP) were very similar, The present findings provided some evidences for the very frequent transmission of influenza (H_3N_2) from hu...