4McMinn PC. An overview of the evolution of enterovirus71 and its clinical and public health significance[J]. FEMS Microbiol Rev, 2002, 26: 91-107.
5Chan YF, AbuBaker S. Recombinant human enterovirus71 in hand, foot and mouth disease patients[J], tmerg Infect Dis, 2004, 10: 1468 70.
6Zhang Y, Tan XJ, Wang HY, et al. An outbreak of hand, foot, and mouth disease associated with subgenotype C4 of human en- terovirus 71 in Shandong, China[J]. J Clin Virol, 2009, 44:262 -7.
7Ooi EE, Phoon MC, Ishak B, et al. Seroepidemiology of human enterovirua 71, Singapore[J]. EmergInfect Dis, 2002, S(9): 995 -7.