Observational studyHuman vaccines & immunotherapeutics2023
Seroprevalence rates in children aged 3-6 years after implementing a two-dose varicella vaccination: A observational study.
Observational study in Human vaccines & immunotherapeutics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
8 citing papers in PubMed, 8 citations in OpenAlex.
- Varicella epidemiology, susceptibility and cost burden in Chongqing China: implications for prevention and control strategies.BMC infectious diseases · 2026Article
- Article
- Article
- Changes in Epidemiological Characteristics of Varicella and Breakthrough Cases in Ningbo, China, From 2010 to 2023: Surveillance Study.JMIR public health and surveillance · 2025Article
- Effectiveness of a 2-dose varicella vaccination program in Changzhou, China, during the transitional period (2017-2022): a registry-based case-cohort study.BMC public health · 2025Article
- Surveillance of Adverse Events Following Varicella Vaccine Immunization in Zhejiang Province, China, from 2020 to 2022.Vaccines · 2025Article
- The impact of the implementation of the two-dose varicella vaccine immunization strategy in Quzhou: A retrospective birth cohort study.Human vaccines & immunotherapeutics · 2024Article
- Analysis of sero-epidemiological characteristics of varicella in healthy children in Wuxi, China.Human vaccines & immunotherapeutics · 2024Article
Corrections and comments
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Authors and funding
8 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The study evaluates the outcomes of including varicella vaccines (VarV) in the local expanded programme on immunization (EPI) on the seropositivity rates and corresponding protective effects for children aged 3-6 years in Suzhou. The study is observational. Varicella prevalence in children was assessed based on data from the China Information System for Disease Control and Prevention (CISDCP) and the Jiangsu Province Vaccination Integrated Service Management Information System (JPVISMIS). Seropositivity was determined using the enzyme-linked immunosorbent assay (ELISA). A total of 2,873 children aged 3-6 years were enrolled in this study. The seropositivity rates were 95.31% and 86.89% for children with and without the strategy, respectively. The difference in seropositivity rate in children using the different strategies was statistically significant (Trend χ
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.