疫苗不良事件报告系统(Vaccine Adverse Event Reporting System,VAERS)对上报的2009年使用单价H1N1流感疫苗(包括鼻喷雾剂和注射制剂)不良事件进行总结。首先需指出使用疫苗后出现的不良事件不一定由疫苗引起,该系统也不能确定使用疫苗后出现的不良事件是否与疫苗相关。据报告:截止2010年1月8日,美国2009年H1N1疫苗供应数达1亿1千万人份, Vaccine Adverse Event Reporting System (VAERS) summarizes the reported 2009 adverse events using the monovalent H1N1 influenza vaccine, including nasal sprays and injections. The first thing to note is that the adverse events that occur after the vaccine are not necessarily caused by the vaccine and that the system is not able to determine if the adverse events following the vaccine are vaccine related. It is reported that as of January 8, 2010, the number of H1N1 vaccine supplies in the United States reached 110 million in 2009,