4Shortridge K F,Webster R G.Geographical distribution of swine (H1N1) and Hong Kong(H3N2) influenza virus variants in pigs in southeast Asia[J].J Intervirology,2004,(11):9-15. 被引量:1
1[1]Shope R E.Swine Influenza Ⅲ.Filtration experiments and etiology[J].J Exp Med,1931,54:373-385. 被引量:1
2[2]Stephen C.H4N6 influenza virus isolated from pigs in Ontario[J].Can Vet J,2000,41:938-939. 被引量:1
3[3]Top FH,Russell PK.Swine influenza A at Fort Dix,New Jersey(January-February 1976).Ⅳ.Summary and sqeculation[J].J Infect Dis,1977,136:376-380. 被引量:1