title: Prophylactic Hepatitis E Vaccine.
abstract: Hepatitis E has been increasingly recognized as an underestimated global disease burden in recent years. Subpopulations with more serious infection-associated damage or death include pregnant women, patients with basic liver diseases, and elderly persons. Vaccine would be the most effective means for prevention of HEV infection. The lack of an efficient cell culture system for HEV makes the development of classic inactive or attenuated vaccine infeasible. Hence, the recombinant vaccine approaches are explored deeply. The neutralizing sites are located almost exclusively in the capsid protein, pORF2, of the virion. Based on pORF2, many vaccine candidates showed potential of protecting primate animals; two of them were tested in human and evidenced to be well tolerated in adults and highly efficacious in preventing hepatitis E. The world's first hepatitis E vaccine, Hecolin®(HEV 239 vaccine), was licensed in China and launched in 2012.
authors.affiliation: State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, China. zhangj@xmu.edu.cn.
authors.forename: Jun
authors.initials: J
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, China.
authors.forename: Qinjian
authors.initials: Q
authors.lastname: Zhao
authors.affiliation: State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Public Health, Xiamen University, Xiamen, China.
authors.forename: Ningshao
authors.initials: N
authors.lastname: Xia
mesh_terms: D000818:Animals; D057134:Antibodies, Neutralizing / Q000276:immunology; D016751:Hepatitis E / Q000276:immunology / Q000517:prevention & control* / Q000821:virology; D016752:Hepatitis E virus / Q000235:genetics / Q000276:immunology* / Q000302:isolation & purification; D006801:Humans; D014764:Viral Proteins / Q000008:administration & dosage / Q000235:genetics / Q000276:immunology; D014765:Viral Vaccines / Q000008:administration & dosage / Q000235:genetics / Q000276:immunology*
chemical_list: D057134:Antibodies, Neutralizing; D014764:Viral Proteins; D014765:Viral Vaccines
keywords: Efficacy; Epitope; Immunogenicity; Neutralizing antibody; Vaccine