387
Participants
Start Date
November 5, 2020
Primary Completion Date
June 30, 2021
Study Completion Date
December 31, 2021
vaccinated with Sabin IPV
the 4th dose of polio vaccination
vaccinated with bOPV
the 4th dose of polio vaccination
Chunan center for disease control and prevention, Hangzhou
Longyou Center for Disease Control and Prevention, Quzhou
China National Biotec Group Company ltd
UNKNOWN
Zhejiang Provincial Center for Disease Control and Prevention
OTHER_GOV