Rao Sameer, Mao J S, Motlekar Salman, Fangcheng Zhuang, Kadhe Ganesh
a Medical Affairs Department , Wockhardt Ltd , Bandra (East), Mumbai , India.
b Institute of Viral Diseases, Zhejiang Academy of Medical Sciences , Hangzhou , China.
Hum Vaccin Immunother. 2016 Dec;12(12):3160-3165. doi: 10.1080/21645515.2016.1216286.
Changing epidemiology of Hepatitis A virus (HAV) has led to an increased susceptibility of adolescents and adults to the infection. Vaccination can remarkably reduce the incidence and associated morbidity of HAV infection. This review is focused on the safety and efficacy of H2 strain derived live attenuated Hepatitis A vaccine. We found the vaccine to be highly immunogenic with minimal or negligible safety issues. Moreover, a single dose of live attenuated vaccine persists a long term immune response and can be a preferred option for developing countries. In 2014, Indian Academy of Paediatrics (IAP) also updated their recommendations for H2 vaccine as a single dose as against the previous 2 dose schedule. A focused approach to include the vaccine in national immunization program should be explored.
甲型肝炎病毒(HAV)流行病学的变化导致青少年和成人对该感染的易感性增加。接种疫苗可显著降低HAV感染的发病率及相关发病情况。本综述聚焦于H2株甲型肝炎减毒活疫苗的安全性和有效性。我们发现该疫苗具有高度免疫原性,安全性问题极少或可忽略不计。此外,单剂量减毒活疫苗可产生长期免疫反应,对于发展中国家而言可能是一个首选选项。2014年,印度儿科学会(IAP)也将其对H2疫苗的推荐更新为单剂量,而非之前的两剂次接种程序。应探索一种有针对性的方法将该疫苗纳入国家免疫规划。