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Peer-reviewedCC BY-NCChina CDC weekly

A Three-Year Surveillance Study on Post-pandemic Respiratory Pathogen Ecological Characteristics in Acute Respiratory Infections - Quanzhou City, Fujian Province, China, 2023-2026.

  • Xiaoling Chen1,2
  • Changliang Wang3,4
  • Weiming Wang1,2
  • Jiajie Huang1,2
  • Manfang Lin1,2
  • Jiangyi Liu1,2
  • Mengjie Yang1,2
  • Caiting Gong1,2
  • Xinlan Huang1,2
  • Jie Zhang3,4
  • Jun Liu3,4
  • Youxian Zheng1,2
4 affiliations
  1. 1The Affiliated Quanzhou Center for Disease Control and Prevention of Fujian Medical University, Quanzhou City, Fujian Province, China.
  2. 2Quanzhou Center for Disease Control and Prevention (Quanzhou Health Supervision Institute), Quanzhou City, Fujian Province, China.
  3. 3Strategic Pandemic Preparedness Action and Research Centre (SPARC), Guangzhou National Laboratory, Guangzhou City, Guangdong Province, China.
  4. 4State Key Laboratory of Respiratory Disease, National Clinical Research Centre for Respiratory Disease, National Centre for Respiratory Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou City, Guangdong Province, China.
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Abstract

Post-pandemic circulation of respiratory pathogens has been reshaped, yet evidence from long-term multipathogen surveillance remains scarce. Among 7,029 cases of acute respiratory infection (ARI) in Quanzhou (2023-2026), influenza viruses and SARS-CoV-2 dominated in alternation, while common respiratory viruses co-circulated as multiple subtypes. Viral pathogens tended to be mutually exclusive, whereas bacteria were preferentially codetected. Male sex, older age, pathogen negativity, and certain monoinfections were associated with greater severity; common coinfections were not. The post-pandemic ARI landscape is a dynamic ecosystem driven jointly by viral interference and bacterial co-colonization, and it calls for sustained multipathogen surveillance.

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Cite

BibTeXRIS
BibTeX
@article{chen2026threeyear,
  title = {{A Three-Year Surveillance Study on Post-pandemic Respiratory Pathogen Ecological Characteristics in Acute Respiratory Infections - Quanzhou City, Fujian Province, China, 2023-2026.}},
  author = {Xiaoling Chen and Changliang Wang and Weiming Wang and Jiajie Huang and Manfang Lin and Jiangyi Liu and Mengjie Yang and Caiting Gong and Xinlan Huang and Jie Zhang and Jun Liu and Youxian Zheng},
  journal = {China CDC weekly},
  year = {2026},
  month = oct,
  doi = {10.46234/ccdcw2026.220},
  url = {https://europepmc.org/article/MED/42997076},
  note = {CC BY-NC},
}
RIS
TY  - JOUR
TI  - A Three-Year Surveillance Study on Post-pandemic Respiratory Pathogen Ecological Characteristics in Acute Respiratory Infections - Quanzhou City, Fujian Province, China, 2023-2026.
AU  - Xiaoling Chen
AU  - Changliang Wang
AU  - Weiming Wang
AU  - Jiajie Huang
AU  - Manfang Lin
AU  - Jiangyi Liu
AU  - Mengjie Yang
AU  - Caiting Gong
AU  - Xinlan Huang
AU  - Jie Zhang
AU  - Jun Liu
AU  - Youxian Zheng
PY  - 2026
DA  - 2026/10/01
JO  - China CDC weekly
DO  - 10.46234/ccdcw2026.220
UR  - https://europepmc.org/article/MED/42997076
AB  - Post-pandemic circulation of respiratory pathogens has been reshaped, yet evidence from long-term multipathogen surveillance remains scarce. Among 7,029 cases of acute respiratory infection (ARI) in Quanzhou (2023-2026), influenza viruses and SARS-CoV-2 dominated in alternation, while common respiratory viruses co-circulated as multiple subtypes. Viral pathogens tended to be mutually exclusive, whereas bacteria were preferentially codetected. Male sex, older age, pathogen negativity, and certain monoinfections were associated with greater severity; common coinfections were not. The post-pandemic ARI landscape is a dynamic ecosystem driven jointly by viral interference and bacterial co-colonization, and it calls for sustained multipathogen surveillance.
SN  - 2096-7071
ER  -