A comprehensive 14-year multicenter study spanning China’s major HIV care centers has revealed alarming rates of sexually transmitted infections among people living with HIV, with nearly 40% experiencing recurrent infections. The research, published in The Lancet Regional Health – Western Pacific, represents the most extensive longitudinal analysis of HIV-STI co-epidemics in the region to date.
STI Prevalence Among HIV-Positive Patients in China
Percentage of patients with each infection type, 2010-2024 cohort study
Source: Chen et al., The Lancet Regional Health, 2024 | Georgian Medical Journal News
Syphilis and HPV Dominate Co-infection Landscape
The study, led by researchers from the Chinese Center for Disease Control and Prevention, tracked 47,892 HIV-positive individuals across 15 provinces from 2010 to 2024, according to Chen et al. (The Lancet Regional Health, 2024). Syphilis emerged as the most prevalent co-infection, affecting 45.2% of participants, followed closely by human papillomavirus at 38.1%. The research methodology involved systematic STI screening at HIV care entry and during routine follow-up visits, providing unprecedented longitudinal data on infection patterns.
“The persistently high rates of syphilis co-infection represent a critical challenge for HIV care programs,” said Dr. Wei Chen, the study’s principal investigator at the National Center for AIDS/STD Control and Prevention (The Lancet Regional Health, 2024).
Bacterial STIs Show Sharp Resurgence After 2018
According to Chen et al. (The Lancet Regional Health, 2024), gonorrhea and chlamydia infections showed a marked increase after 2018, reversing earlier declining trends. Gonorrhea rates rose from 18.1% in 2018 to 22.3% by 2024, while chlamydia infections increased from 15.2% to 18.7% over the same period.
The World Health Organization has identified antimicrobial resistance as a key driver of bacterial STI resurgence globally.
Regional Variations Point to Social Determinants
Geographic analysis by Chen et al. (The Lancet Regional Health, 2024) revealed significant provincial variations in STI prevalence, with rates ranging from 28.4% in rural western provinces to 67.2% in major urban centers. Men who have sex with men (MSM) represented the highest-risk demographic, accounting for 52.3% of recurrent infections despite comprising only 31.7% of the study population, according to the study.
Implications for Western Pacific Health Systems
Integration of STI screening into routine HIV care emerged as a cost-effective strategy, with the Chen et al. study demonstrating that systematic screening identified 23.1% more infections than symptom-based testing alone.
Systematic STI screening in HIV care settings identified 23.1% more infections compared to symptom-based testing, with syphilis showing the highest recurrence rate at 31.4% over five years.
— Dr. Wei Chen, National Center for AIDS/STD Control and Prevention (The Lancet Regional Health, 2024)
Key takeaways
- Nearly 40% of HIV-positive patients experienced recurrent STIs over 14 years, with syphilis affecting 45.2% of participants (Chen et al., The Lancet Regional Health, 2024)
- Bacterial STI rates increased sharply after 2018, with gonorrhea rising from 18.1% to 22.3% by 2024 (Chen et al., The Lancet Regional Health, 2024)
- Systematic screening identified 23.1% more infections than symptom-based approaches (Chen et al., The Lancet Regional Health, 2024)
Frequently asked questions
Why do HIV-positive individuals have higher STI rates?
HIV compromises immune function, making individuals more susceptible to other infections. Additionally, shared transmission routes and behavioral risk factors contribute to co-infection patterns, as demonstrated in the Chen et al. study (The Lancet Regional Health, 2024).
How effective is integrated HIV-STI screening?
The Chen et al. study found that systematic STI screening identified 23.1% more infections compared to symptom-based testing alone (The Lancet Regional Health, 2024).
What explains the increase in bacterial STIs after 2018?
The Chen et al. study documented the increase but did not specify the underlying causes (The Lancet Regional Health, 2024).
The study’s comprehensive methodology and extended follow-up period establish a new standard for HIV-STI co-epidemic research in the Western Pacific, according to Chen et al. (The Lancet Regional Health, 2024).
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Medically reviewed by Prof. Giorgi Pkhakadze, MD, MPH, PhD. Spotted an error? Contact the editorial team.
