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甲型肝炎 (甲肝 )纯化灭活疫苗 (ＶＡＱＴＡ○R,默沙东 )是一种经福尔马林灭活的甲肝疫苗 ,通过对甲肝病毒 (ＨＡＶ)的Ｆ′病毒株 (ＣＲ32 6Ｆ)进行一系列高度减毒过程后获得。早先自Ｆ′变异病毒株获得的活疫苗有很长的潜伏期 ,有些志愿受试者在接种3 5个月后仍未有血清抗体阳
Hepatitis A (hepatitis A) purified inactivated vaccine (VAQTA® R, Merck’s) is a formalin-inactivated hepatitis A vaccine administered in a series of vaccines against the F ’strain of hepatitis virus (HAV) (CR32 6F) Obtained after a highly attenuated process. The live vaccine previously obtained from the F ’variant virus strain has a long incubation period, and some volunteers still do not have the serum antibody after 35 months of inoculation