[
1. Bi Y., Fu G., Chen J., Peng J., Sun Y., Wang J., Pu J., Zhang Y., Gao H., Ma G., Tian F., Brown I.H., Liu J.: Novel swine influenza virus reassortants in pigs, China. Emerg Infect Dis 2010, 16, 1162-1164.10.3201/eid1607.091881
]Search in Google Scholar
[
2. Brown I.H., Harris P.A., McCauley J.W., Alexander D.J.: Multiple genetic reassortment of avian and human influenza A viruses in European pigs, resulting in the emergence of an H1N2 virus of novel genotype. J Gen Virol 1998, 79, 2947-2955.10.1099/0022-1317-79-12-2947
]Search in Google Scholar
[
3. Brown I.H.: The epidemiology and evolution of influenza viruses in pigs. Vet Microbiol 2000, 74, 29-46.10.1016/S0378-1135(00)00164-4
]Search in Google Scholar
[
4. Campitelli L., Donatelli I., Foni E., Castrucci M.R., Fabiani C., Kawaoka Y., Krauss S., Webster R.G.: Continued evolution of H1N1 and H3N2 influenza viruses in pigs in Italy. Virology 1997, 232, 310-318.10.1006/viro.1997.85149191844
]Search in Google Scholar
[
5. Castrucci M.R., Donatelli I., Sidoli L., Barigazzi G., Kawaoka Y., Webster R.G.: Genetic reassortment between avian and human influenza A viruses in Italian pigs. Virology 1993, 193, 503-506.10.1006/viro.1993.11558438586
]Search in Google Scholar
[
6. Gregory V., Bennett M., Orkhan M.H., Al Hajjar S., Varsano N., Mendelson E., Zambon M., Ellis J., Hay A., Lin Y.P.: Emergence of influenza A H1N2 reassortant viruses in the human population during 2001. Virology 2002, 300, 1-7.10.1006/viro.2002.151312202200
]Search in Google Scholar
[
7. Kuntz-Simon G., Madec F.: Genetic and antigenic evolution of swine influenza viruses in Europe and evaluation of their zoonotic potential. Zoonoses Public Health 2009, 56, 310-325.10.1111/j.1863-2378.2009.01236.x19497089
]Search in Google Scholar
[
8. Kyriakis C.S., Brown I.H., Foni E., Kuntz-Simon G., Maldonado J., Madec F., Essen S.C., Chiapponi C., Van Reeth K.: Virological surveillance and preliminary antigenic characterization of influenza viruses in pigs in five European countries from 2006 to 2008. Zoonoses Public Health 2011, 58, 93-101.10.1111/j.1863-2378.2009.01301.x20042068
]Search in Google Scholar
[
9. Maldonado J., Van Reeth K., Riera P., Sitjà M., Saubi N., Espuña E., Artigas C.: Evidence of the concurrent circulation of H1N2, H1N1 and H3N2 influenza A viruses in densely populated pig areas in Spain. Vet J 2006, 172, 377-381.10.1016/j.tvjl.2005.04.01415914047
]Search in Google Scholar
[
10. Markowska-Daniel I., Kowalczyk A.: Prevalence of swine influenza in Poland. Medycyna Wet 2005, 61, 669-673.
]Search in Google Scholar
[
11. Marozin S., Gregory V., Cameron K., Bennett M., Valette M., Aymard M., Foni E., Barigazzi G., Lin Y., Hay A.: Antigenic and genetic diversity among swine influenza A H1N1 and H1N2 viruses in Europe. J Gen Virol 2002, 83, 735-745.10.1099/0022-1317-83-4-73511907321
]Search in Google Scholar
[
12. Olsen C.W., Brown I.H., Easterday B.C., Van Reeth K.: Swine influenza. In: Diseases of swine, edited by B. Straw, J. Zimmerman, S. D’Allaire, D. Taylor, Blackwell Publishing, Iowa, 2006, pp. 469-482.
]Search in Google Scholar
[
13. Olsen C.W., Karasin A.I., Carman S., Li Y., Bastien N., Ojkic D., Alves D., Charbonneau G., Henning B.M., Low D.E., Burton L., Broukhanski G.: Triple reassortant H3N2 influenza A viruses, Canada, 2005. Emerg Infect Dis 2006, 12, 1132-1135.10.3201/eid1207.060268329106916836834
]Search in Google Scholar
[
14. Pensaert M., Ottis K., Vandeputte J., Kaplan M.M., Bachmann P.A.: Evidence for the natural transmission of influenza A virus from wild ducks to swine and its potential importance for man. Bull World Health Organ 1981, 59, 75-78.
]Search in Google Scholar
[
15. Pospisil Z., Lany P., Tumova B., Buchta J., Zendulkova D., Cihal P.: Swine influenza surveillance and the impact of human influenza epidemics on pig herds in the Czech Republic. Acta Vet Brno 2001, 70, 327-332.10.2754/avb200170030327
]Search in Google Scholar
[
16. Schiltz J., Korslund J.A., Pyburn D., Swenson S., Tomlinson S., Kasari E.M., Vincent A.: National surveillance for swine influenza in the United States, 2009-present. Proc. 22nd IPVS Congress, Jeju, Korea, 2012, p. 415.
]Search in Google Scholar
[
17. Schrader C., Süss J.: Genetic characterization of a porcine H1N2 influenza virus strain isolated in Germany. Intervirology 2003, 46, 66-70.10.1159/00006812412566701
]Search in Google Scholar
[
18. Simon G., Reid S.M., Larsen L.E., Kellam P., van Reeth K., Foni E., Markowska-Daniel I., Agüero-Garcia M., Dürwald R., Huovilainen A., Yadin H., Dan A., Loeffen W., Kyriakis C., Bublot M., Maldonado J., Lewis N., Brown I.H.: European surveillance network for influenza in pigs 3 (ESNIP 3). Proc. 22nd IPVS Congress, Jeju, Korea, 2012, p. 165.
]Search in Google Scholar
[
19. Sorensen V., Jorsal S.E., Mousing J.: Diseases of the respiratory system. In: Diseases of swine, edited by B. Straw, S. D’Allaire, J. Zimmerman, D. Taylor, Iowa State University Press, Iowa, 2005, pp. 149-177.
]Search in Google Scholar
[
20. Torremorell M., Allerson M., Corzo C., Diaz A., Gramer M.: Transmission of influenza A virus in pigs. Tranboundary Emerging Dis 2012, 59, 68-84.10.1111/j.1865-1682.2011.01300.x22226050
]Search in Google Scholar
[
21. Trebbien R.: Influenza A virus in pigs - diagnosis, pathogenesis and host restriction. Thesis. Copenhagen, 2010, pp. 101-131.
]Search in Google Scholar
[
22. Tremblay D., Allard V., Doyon J.F., Bellehumeur C., Spearman J.G., Harel J., Gagnon C.A.: Emergence of a new swine H3N2 and pandemic (H1N1) 2009 influenza virus reassortant in two Canadian animal populations, mink and swine. J Clin Microbiol 2011, 49, 4386-4390.10.1128/JCM.05676-11323293222012020
]Search in Google Scholar
[
23. Van Reeth K.V., Brown I., Essen S., Pensaert M.: Genetic relationships, serological cross-reaction and cross-protection between H1N2 and other influenza A virus subtypes endemic in European pigs. Virus Res 2004, 103, 115-124.10.1016/j.virusres.2004.02.02315163499
]Search in Google Scholar
[
24. Van Reeth K., Brown I.H., Dürrwald R., Foni E., Labarque G., Lenihan P., Maldonado J., Markowska-Daniel I., Pensaert M., Pospisil Z., Koch G.: Seroprevalence of H1N1, H3N2 and H1N2 influenza viruses in pigs in seven European countries in 2002-2003. Influenza Resp Viruses 2008, 2, 99-105.10.1111/j.1750-2659.2008.00043.x463469719453469
]Search in Google Scholar
[
25. Vincent A.L., Ma W., Lager K.M., Gramer M.R., Richt J.A., Janke B.H.: Characterization of a newly emerged genetic cluster of H1N1 and H1N2 swine influenza virus in the United States. Virus Genes 2009, 39, 176-185.10.1007/s11262-009-0386-619597980
]Search in Google Scholar
[
26. Webby R.J., Swenson S.L., Krauss S.L., Gerrish P.J., Goyal S.M., Webster R.G.: Evolution of swine H3N2 influenza viruses in the United States. J Virol 2000, 74, 8243-8251.10.1128/JVI.74.18.8243-8251.2000
]Search in Google Scholar
[
27. Xu C., Zhu Q., Yang H., Zhang X., Qiao C., Chen Y., Xin X., Chen H.: Two genotypes of H1N2 swine influenza viruses appeared among pigs in China. J Clin Virol. 2009, 46, 192-195.
]Search in Google Scholar
[
28. Xu X., Smith C.B., Mungall B.A., Lindstrom S.E., Hall H.E., Subbarao K., Cox N.J., Klimov A.: Intercontinental circulation of human influenza A (H1N2) reassortant viruses during the 2001-2002 influenza season. J Infect Dis 2002, 186, 1490-1493.10.1086/34473812404167
]Search in Google Scholar
