基金supported by grants from the National Natural Science Foundation of China(82041023 and 81773546)the Chinese Academy of Medical Sciences(CAMS)Innovation Fund for Medical Sciences(2020-I2M-1-001)+2 种基金the Chinese Academy of Medical Sciences Fund for Influenza Pandemic Response and Public Health Emergency System(2021P062QG008)the Bill&Melinda Gates Foundation(2021P057QG006)the Special Fund for Health Development Research of Beijing(2021-1G-3013)。