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ORIGINAL RESEARCH article

Front. Public Health

Sec. Infectious Diseases: Epidemiology and Prevention

Volume 13 - 2025 | doi: 10.3389/fpubh.2025.1600214

Prevalence and epidemiological pattern of drug-resistant tuberculosis among migrant populations in Wenzhou City, China, 2014-2023: implications for public health strategies

Provisionally accepted
Lianpeng  WuLianpeng Wu1Xiyue  CaiXiyue Cai2Shuya  XuShuya Xu3Xuefeng  LinXuefeng Lin4Shuangliao  WuShuangliao Wu1*Xueqin  XuXueqin Xu1*
  • 1The Ding Li Clinical College of Wenzhou Medical University, Department of Clinical Laboratory Medicine, Wenzhou Central Hospital, Wenzhou, Zhejiang Province, China
  • 2Medical Management Office, Wenzhou Municipal Public Hospital Management Center, Wenzhou, China
  • 3Department of Tuberculosis Clinic, The Ding Li Clinical College of Wenzhou Medical University, Wenzhou Central Hospital, Wenzhou, China
  • 4Department of Clinical Laboratory Medicine, Yueqing People's Hospital, Wenzhou, China

The final, formatted version of the article will be published soon.

Objective: This study aimed to analyze the epidemiological characteristics and trends of notified multidrug-resistant tuberculosis (MDR-TB) in Wenzhou City, China, from 2014 to 2023, with a focus on differences between migrant and local populations among reported TB cases. Methods: This was a facility-based retrospective cohort study that included all bacteriologically confirmed TB cases notified between 1 January 2014 and 31 December 2023 in the Tuberculosis Information Management System (TBIMS) of the Chinese Center for Disease Control and Prevention and the hospital’s laboratory information system, provided they had available phenotypic drug-susceptibility testing (pDST) results. Pearson’s chi-square test was used to compare drug-resistance rates between groups, the trend chi-square test was applied to assess temporal changes, and a Sankey diagram was employed to illustrate the origins and intra-city distribution of MDR-TB among the migrant population. Results: Among 10 993 notified TB patients, 734 (6.68%) were classified as MDR-TB. The proportion of MDR-TB among notified cases declined over the study period (P < 0.001). Nearly half (352/734; 47.96%) of the notified MDR-TB patients were migrants; 226 (64.21%) originated from elsewhere in Zhejiang Province, and 126 (35.79%) came from outside the province. Guizhou, Jiangxi and Sichuan were the leading external contributors. Within Wenzhou, Yueqing City, Yongjia County and Ouhai District reported the highest numbers of migrant MDR-TB notifications. Conclusion: The proportion of MDR-TB among notified TB cases in Wenzhou City has steadily decreased. Migrants account for almost half of these notified MDR-TB cases. Surveillance-driven and migrant-targeted interventions should be prioritised to further reduce MDR-TB transmission.

Keywords: Multidrug-resistant tuberculosis, Epidemiology, Notified cases, Migrant population, Wenzhou

Received: 26 Mar 2025; Accepted: 01 Aug 2025.

Copyright: © 2025 Wu, Cai, Xu, Lin, Wu and Xu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence:
Shuangliao Wu, The Ding Li Clinical College of Wenzhou Medical University, Department of Clinical Laboratory Medicine, Wenzhou Central Hospital, Wenzhou, 325000, Zhejiang Province, China
Xueqin Xu, The Ding Li Clinical College of Wenzhou Medical University, Department of Clinical Laboratory Medicine, Wenzhou Central Hospital, Wenzhou, 325000, Zhejiang Province, China

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