{"title":"Distinct Clinical and Laboratory Markers Associated with Disease Duration and Viral Clearance in Foshan's 2025 Chikungunya Outbreak.","authors":"Zenghai Wang, Qun Lin, Caijie Liao, Yiqian Wang","doi":"10.1016/j.ijid.2025.108080","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>Chikungunya fever (CHIKV) is a re-emerging arboviral disease with significant public health impact. Data on clinical and laboratory predictors of disease course in China are limited. This study aimed to assess the associations between clinical and laboratory parameters with both time from symptom onset and viral clearance in patients with confirmed CHIKV infection.</p><p><strong>Methods: </strong>We conducted a retrospective observational study of 372 patients with RT-PCR-confirmed CHIKV infection admitted to Lecong Hospital, Foshan, China, between July and August 2025. Demographic, clinical, and laboratory data were extracted from medical records. Pearson correlation was used to evaluate associations between clinical variables and (i) days from symptom onset, and (ii) time to viral clearance.</p><p><strong>Results: </strong>Days from symptom onset were positively correlated with AST (r = 0.2088, P < 0.0001), ALT (r = 0.1533, P = 0.0043), and fever duration (r = 0.3401, P < 0.0001), while NEU showed a weak negative correlation (r = -0.1182, P = 0.0342). CK was negatively correlated with days from symptom onset (r = -0.1528, P = 0.0121). Time to viral clearance was positively correlated with age (r = 0.1896, P = 0.0069), joint pain duration (r = 0.2248, P = 0.0013), rash duration (r = 0.06763, P = 0.0339), and initial symptom duration (r = 0.1410, P = 0.0443).</p><p><strong>Conclusion: </strong>Elevated liver enzymes and reduced neutrophil counts were associated with longer symptom duration, while older age and prolonged joint pain, rash, and initial symptoms predicted delayed viral clearance. These findings may assist clinicians in identifying patients at risk of prolonged illness and inform targeted management strategies during CHIKV outbreaks in China and similar settings. Our study represents one of the first systematic analyses of clinical and laboratory markers associated with disease course and viral clearance in CHIKV-infected patients in China.</p>","PeriodicalId":14006,"journal":{"name":"International Journal of Infectious Diseases","volume":" ","pages":"108080"},"PeriodicalIF":4.3000,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Infectious Diseases","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1016/j.ijid.2025.108080","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"INFECTIOUS DISEASES","Score":null,"Total":0}
引用次数: 0
Abstract
Background: Chikungunya fever (CHIKV) is a re-emerging arboviral disease with significant public health impact. Data on clinical and laboratory predictors of disease course in China are limited. This study aimed to assess the associations between clinical and laboratory parameters with both time from symptom onset and viral clearance in patients with confirmed CHIKV infection.
Methods: We conducted a retrospective observational study of 372 patients with RT-PCR-confirmed CHIKV infection admitted to Lecong Hospital, Foshan, China, between July and August 2025. Demographic, clinical, and laboratory data were extracted from medical records. Pearson correlation was used to evaluate associations between clinical variables and (i) days from symptom onset, and (ii) time to viral clearance.
Results: Days from symptom onset were positively correlated with AST (r = 0.2088, P < 0.0001), ALT (r = 0.1533, P = 0.0043), and fever duration (r = 0.3401, P < 0.0001), while NEU showed a weak negative correlation (r = -0.1182, P = 0.0342). CK was negatively correlated with days from symptom onset (r = -0.1528, P = 0.0121). Time to viral clearance was positively correlated with age (r = 0.1896, P = 0.0069), joint pain duration (r = 0.2248, P = 0.0013), rash duration (r = 0.06763, P = 0.0339), and initial symptom duration (r = 0.1410, P = 0.0443).
Conclusion: Elevated liver enzymes and reduced neutrophil counts were associated with longer symptom duration, while older age and prolonged joint pain, rash, and initial symptoms predicted delayed viral clearance. These findings may assist clinicians in identifying patients at risk of prolonged illness and inform targeted management strategies during CHIKV outbreaks in China and similar settings. Our study represents one of the first systematic analyses of clinical and laboratory markers associated with disease course and viral clearance in CHIKV-infected patients in China.
期刊介绍:
International Journal of Infectious Diseases (IJID)
Publisher: International Society for Infectious Diseases
Publication Frequency: Monthly
Type: Peer-reviewed, Open Access
Scope:
Publishes original clinical and laboratory-based research.
Reports clinical trials, reviews, and some case reports.
Focuses on epidemiology, clinical diagnosis, treatment, and control of infectious diseases.
Emphasizes diseases common in under-resourced countries.