Evidence map›Paper›PMID 41601991›Full record

ArticleFrontiers in public health2025

Epidemiological and spatial-temporal clustering characteristics of pertussis in Southwest China, 2013-2024.

Ju Wang, Jiawei Xu, Dayong Xiao, Baisong Li, Yu Xiong, Jule Yang, Wenshuang Wei, Longyu Chen, Qi Wang, Yao Qin and 4 more

Abstract read
In one paragraph

Article in Frontiers in public health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors.

Ju Wang *Department of Infectious Disease Prevention and Control, Chongqing Municipal Center for Disease Control and Prevention (Chongqing Academy of Preventive Medicine), Chongqing, China.
Jiawei Xu *Department of Infectious Disease Prevention and Control, Chongqing Municipal Center for Disease Control and Prevention (Chongqing Academy of Preventive Medicine), Chongqing, China.
Dayong XiaoDepartment of Infectious Disease Prevention and Control, Chongqing Municipal Center for Disease Control and Prevention (Chongqing Academy of Preventive Medicine), Chongqing, China.
Baisong LiDepartment of Infectious Disease Prevention and Control, Chongqing Municipal Center for Disease Control and Prevention (Chongqing Academy of Preventive Medicine), Chongqing, China.
Yu XiongDepartment of Infectious Disease Prevention and Control, Chongqing Municipal Center for Disease Control and Prevention (Chongqing Academy of Preventive Medicine), Chongqing, China.
Jule YangDepartment of Infectious Disease Prevention and Control, Chongqing Municipal Center for Disease Control and Prevention (Chongqing Academy of Preventive Medicine), Chongqing, China.
Wenshuang WeiDepartment of Basic Medical Education, Dazhou Vocational College of Traditional Chinese Medicine, Dazhou, Sichuan, China.
Longyu ChenSchool of Public Health, Southwest Medical University, Luzhou, Sichuan, China.
Qi WangDepartment of Infectious Disease Prevention and Control, Sichuan Center for Disease Control and Prevention, Chengdu, Sichuan, China.
Yao QinDepartment of Infectious Disease Prevention and Control, Sichuan Center for Disease Control and Prevention, Chengdu, Sichuan, China.
Yang LiuDepartment of Infectious Disease Prevention and Control, Chongqing Municipal Center for Disease Control and Prevention (Chongqing Academy of Preventive Medicine), Chongqing, China.
Han ZhaoDepartment of Infectious Disease Prevention and Control, Chongqing Municipal Center for Disease Control and Prevention (Chongqing Academy of Preventive Medicine), Chongqing, China.
Jiang LongDepartment of Infectious Disease Prevention and Control, Chongqing Municipal Center for Disease Control and Prevention (Chongqing Academy of Preventive Medicine), Chongqing, China.
Li QiDepartment of Infectious Disease Prevention and Control, Chongqing Municipal Center for Disease Control and Prevention (Chongqing Academy of Preventive Medicine), Chongqing, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Despite high childhood vaccination coverage, pertussis has resurged in China in recent years. Understanding its evolving epidemiology is critical for guiding public health interventions. This study analyzed spatiotemporal trends and identified key drivers of pertussis notification rates in Chongqing, China (2013-2024). Methods: We analyzed longitudinal surveillance data of pertussis cases from the National Notifiable Infectious Disease Reporting System (NNDRS) in Chongqing, China (2013-2024). Demographic and vaccination coverage data were obtained from the Basic Information System (a subsystem of the NNDRS) and the National Immunization Program Information System (NIPIS), respectively. We employed joinpoint regression to quantify long-term notification rate trends, interrupted time-series analysis to evaluate the impact of national diagnostic criteria revisions (2017, 2024), spatiotemporal scan statistics to identify high-risk space-time clusters, and multilevel linear mixed-effects models to determine district-level factors associated with notification rates, while accounting for random variations across districts and years. Results: From 2013 to 2024, 33,226 pertussis cases were notified in Chongqing. A dramatic surge occurred in 2024, accounting for 68.55% ( Conclusion: This study documents a substantial resurgence of pertussis in Chongqing from 2013 to 2024, characterized by a notable change in age distribution. Although infants (aged <1 year) maintained the highest notification rate, school-aged children (5-10 years) emerged as the largest case group in 2024. Consequently, establishing seroepidemiological surveillance to directly quantify population immunity is essential for designing targeted and effective control measures.

Indexed as

Whooping CoughChildChild, PreschoolChinaDisease NotificationFemaleHumansInfantLongitudinal StudiesMaleSpatio-Temporal Analysispertussisresurgencespatiotemporal analysisvaccinewhooping cough

Identifiers

PMID41601991
PMCPMC12832240

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Registered trials

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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.