特异性疫苗的预测要求计算出每种新疫苗预期的卫生效益和开发成本。疫苗的特征(如弱毒,亚单位等),使用方式和效果等因素,都对接种人的接受力有影响。制备方法过于复杂和生产周期过长,也会影响总成本和卫生效益。 The prediction of specific vaccines requires calculating the expected health benefits and development costs for each new vaccine. Vaccination characteristics (such as attenuated, subunit, etc.), methods of use and effects and other factors, have an impact on the acceptance of vaccination. The preparation method is too complicated and the production cycle is too long, which can also affect the total cost and the health benefits.