MMWR Morb Mortal Wkly Rep. 2007 Oct 19;56(41):1080-4.
In 1995, highly effective inactivated hepatitis A vaccines were first licensed in the United States for preexposure prophylaxis against hepatitis A virus (HAV) among persons aged > or =2 years. In 2005, vaccine manufacturers received Food and Drug Administration approval for use of the vaccines in children aged 12-23 months.
1995年,高效灭活甲肝疫苗首次在美国获得许可,用于2岁及以上人群暴露前预防甲型肝炎病毒(HAV)。2005年,疫苗制造商获得美国食品药品监督管理局批准,可将这些疫苗用于12至23个月大的儿童。