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  • Title: [Antibody detection and sequencing analysis of hepatitis E virus in human population, swine and chicken in Sichuan region in China].
    Author: Jiang YZ, Lu J, Zhang LP, Tian RG, Liu QL, Bi SL.
    Journal: Zhonghua Shi Yan He Lin Chuang Bing Du Xue Za Zhi; 2008 Dec; 22(6):468-71. PubMed ID: 19544648.
    Abstract:
    OBJECTIVE: To investigate the seroprevalence of HEV infection and genotype. METHODS: ELISA were used for detecting anti-HEV IgG of the serum samples, the nested reverse transcriptase PCR (RT-nPCR) was used for detecting HEV RNA in patient serum and swine bile samples. All samples were collected in 2005-2007 in some districts in Sichuan province. The primers used for genotyping were the ORF2 region of HEV genome. RESULTS: The anti-HEV IgG was detected positive in childrens 6.10% (41/672), adults 42.26% (280/ 661), swines 88.89% (32/36), chickens negative (0/59). 1 case of 15 serum samples of anti-HEV IgM positive and 3 of 54 swine bile samples were positive for HEV RNA by RT-PCR.Sequence analysis of 4 isolates has 92.1% to 98.6% nucleotide sequence homology. These isolates from human and swine were identified closely related to Ch-T21 strain 90.1%-96.9% sequence homology, which belonged to HEV genotype 4B. CONCLUSIONS: The swine were the risk factors in the spread of hepatitis E virus.
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