Number of Cases Prevented and Deaths Averted per Year+ Depending on Vaccine Efficacy, Serovar Distribution, and Vaccination Schedule.

Number of Cases Prevented and Deaths Averted per Year+ Depending on Vaccine Efficacy, Serovar Distribution, and Vaccination Schedule.每年预防的病例数与避免的死亡人数：该指标的取值取决于疫苗效力、血清型分布以及免疫接种程序。