ArticleHuman vaccines & immunotherapeutics2026
Impact of the two-dose varicella vaccination recommendation program and surveillance optimization on epidemiological trends in a megacity in China.
Article in Human vaccines & immunotherapeutics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Effectiveness of varicella vaccine during a varicella outbreak in a Chinese senior high school: a retrospective cohort study.Frontiers in immunology · 2026Article
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
To assess the impact of implementing a two-dose varicella vaccine (VarV) immunization recommendation program on the incidence of varicella in Chongqing, China. Monthly reported varicella cases from 2011 to 2023 were extracted from the National Notifiable Diseases Reporting System (NNDRS), alongside the vaccination records from the Chongqing Immunization Planning Information Management System. The interrupted time series analysis (ITS) was employed to study the epidemiological trends of varicella. The average reported annual incidence of varicella in Chongqing was 69.6 per 100,000 population during 2011-2023, with the highest incidence recorded in 2019 (133.9 per 100,000 population) and the lowest in 2011 (21.3 per 100,000 population). Children aged 5-9 y accounted for 34.5% of the total cases. Second-dose coverage of VarV surged from 4.1% in 2018 to 27.5% in 2023 among children aged 4-6 y. The segmented regression model demonstrated that, following the incorporation of varicella into the surveillance system in 2014, there was an upward long-term trend in the reported varicella incidence (β
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