Antigenic and Genetic Characterization of Swine Influenza A (H1N1) Viruses Isolated The oer,*

ospital ecemb ost for assorta ere iso and ge cluded eassor Influen ease in and bird caused viruses, demics, century. ple rese virus are viruses reservoi enza A v man. Th 1997 wit of this tr al., 1998 which caused six casualties, failed to be transmitted efficiently from human to human (Buxton Bridges et al., 2000; Ka both avi viruses may als exchang transmit believed pigs ires s lactos es, wh loses ich is orts uses, tes, t ses, h es pr 1984 es cla ine in ce 19 mpite to h scribe such a previously identified H1N1 virus, A/Netherlands