Assessing the impact of the 2018 Changchun Changsheng vaccine incident on childhood vaccination in China.

ABSTRACT:

Background

The 2018 Changchun Changsheng vaccine incident is an emergent public health event in China with reports of DTaP vaccines with compromised efficacy. This study aimed to estimate the impact of the vaccine incident on real-world vaccination behaviors in China.

Methods

A cross-sectional survey was conducted in ten provinces in 2019. Vaccination records were collected from 5294 children aged 6-59 months, with information on 75,579 vaccine doses for seven National Immunization Program (NIP) vaccines and two non-NIP vaccines received from 2014 to 2019. Chi-square test, interrupted time series, and logistic regression were used to evaluate the impacts of vaccine incident on vaccination delay, measured as the proportion of delayed doses out of total doses in schedule.

R

SUBMITTER: Hou Z 

PROVIDER: S-EPMC10444794 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature