1Nathanson N .Kew OM. From emergence to eradication: the epide?miology of poliomyelitis deconstructed[J]. AmJ Epiderniol , 2010, 172(11):1213-1229.
2Liang X, Zhang Y, Xu W, et al. An outbreak of poliomyelitis caused by type 1 vaccine-derived poliovirus in China[J].J Infect Dis,2006, 194(5) : 545-551.
3Yan D,Li Ls Zhu Svet al. Emergence and Localized Circulation of a Vaccine-Derived Poliovirus in an Isolated Mountain Community in Guangxi,China[J].J Clinl Microbiol,2010,48(9) :3274-3280.
4Chi CY, Tseng FC, Liu DP, et al. Investigations of clinical isola?tions of oral poliovirus vaccine strains between 2000 and 2005 in southern Taiwan[J]'J Clil Viro,2009,45(Z):IZ9-134.
5Kew OM, Sutter RW, de Gourville EM, et al. Vaccine-derived po?lioviruses and the endgame strategy for global polio eradication[J]. Annu Rev Microbiol 2005,59: 587-635.
6Macadam AI,Pollard SR. Ferguson G,et al. The 5' noncoding re?gion of the type 2 poliovirus vaccine strain contains determinants of attenuation and temperature sensitivity[J]. Virology, 1991,181 (2) :451-458.
8Avell6n A, Cabrerizo M, De Miguel T, et al. Paralysis Case and Contact Spread of Recombinant Vaccine-derived Poliovirus, Spain[J]. Emerg Infec Dis,2008,14(11) :1807-1809.
9Arita Mv Zhu SL, Yoshida Hv et al. A Sabin 3-derived poliovirus recombinant contained a sequence homologous with indigenous human enterovirus species C in the viral polymerase coding region[J].J Viro, 2005,79 (20) : 12650-12657.
2Toyoda H, Kohara M, Kataoka Y, et al. Completenu-cleotidesequences of all three poliovirus serotype genomes. Implication for genetic relationship, gene function and antigenic determinants[J]. J Mol Biol, 1984,174(4):561-585.
3Freitadt MS, Eberle KE. Correlation betweenpoliovirus type 1 Mahoney replication in blood cells and neurovirulence [J]. J Virol,1996,70(9):6486-6492.
4Chezzi C, Dommann CJ, Blackburn NK, et al. Genetic stability of oral polio vaccine prepared on primary monkey kidney cells or Vero cells-effects of passage in cell culture and the human gastrointestinal tract[J]. Vaccine, 1998,16(20):2031-2038.
5Friedrich F. Neurologic complications associated with oral poliovirus vaccine and genomic variability of the vaccine strains after multiplication in humans[J]. Acta Virol, 1998,42(3):187-194.
7Mc Ginnis S,Madden TL. BLAST:at thecore of a powerful and iverse set of sequence analysis tools[J]. Nucleic Acids Res,2004, 32(Web Serverissue): W20-25.
8Hall TA. BioEdit:a user-friendly biological sequence alignment editor and analysis programfor Windows 95/98/NT[J]. Nucl Acids Symp, 1999,41:95-98.
9Page RD. TreeView: an application to display phylogenetic trees on personal computers[J]. Comput Appl Biosci, 1996,12(4):357-358.
10Liu RX, Kuang J, Gong Q, et al. Principal component regression analysis with SPSS [J]. Comput Methods Programs Biomed,2003,71(2):141-147.
6Betakova T, Svetlikova D, Gocnik M. Overview of measles and mumps vaccine : origin, present, and future of vaccine production [J]. Acta Virologica, 2013, 57(2) : 91 -96.
