Background: Pretreatment drug resistance (PDR) can limit the effectiveness of HIV antiretroviral therapy (ART). The aim of this study was to assess the prevalence of PDR among HIV-positive individuals that initiated antiretroviral therapy in 2014-2020 in southwestern China.
Methods: Consecutive cross-sectional surveys were conducted in Qinzhou, Guangxi. We obtained blood samples from individuals who were newly diagnosed with HIV in 2014-2020. PDR and genetic networks analyses were performed by HIV-1 pol sequences using the Stanford HIV-database algorithm and HIV-TRACE, respectively. Univariate and multivariate logistic regression models were used to explore the potential factors associated with PDR.
Results: In total, 3236 eligible HIV-positive individuals were included. The overall prevalence of PDR was 6.0% (194/3236). The PDR frequency to NNRTI (3.3%) was much higher than that of NRTI (1.7%, p < 0.001) and PI (1.2%, p < 0.001). A multivariate logistic regression analysis revealed that PDR was significantly higher among individuals aged 18-29 (adjusted odds ratio (aOR): 1.79, 95% CI 1.28-2.50) or 30-49 (aOR: 2.82, 95% CI 1.73-4.82), and harboring CRF08_BC (aOR: 3.23, 95% CI 1.58-6.59). A total of 1429 (43.8%) sequences were linked forming transmission clusters ranging in size from 2 to 119 individuals. Twenty-two individuals in 10 clusters had the same drug resistant mutations (DRMs), mostly to NNRTIs (50%, 5/10).
Conclusions: The overall prevalence of PDR was medium, numerous cases of the same DRMs among genetically linked individuals in networks further illustrated the importance of surveillance studies for mitigating PDR.
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http://dx.doi.org/10.1186/s12879-021-06847-5 | DOI Listing |
HIV Res Clin Pract
December 2025
Division of Infectious Diseases and Global Public Health, School of Medicine, University of California San Diego (UCSD), La Jolla, CA, USA.
Background: HIV remains a major challenge in KwaZulu-Natal, South Africa, particularly for young women who face disproportionate risks and barriers to prevention and treatment. Most HIV cure trials, however, occur in high-income countries.
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Viruses
January 2025
Virology Department, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania.
Cytomegalovirus infections and reactivations are more frequent in people living with HIV (PLWH) and have been associated with increased risk of HIV progression and immunosenescence. We explored the impact of combination antiretroviral therapy (cART) on latent CMV infection in 225 young adults parenterally infected with HIV during childhood. Anti-CMV IgG antibodies were present in 93.
View Article and Find Full Text PDFPathogens
January 2025
Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8523, Japan.
Information on circulating HBV (sub-)genotype, variants, and hepatitis D virus (HDV) coinfection, which vary by geographical area, is crucial for the efficient control and management of HBV. We investigated the genomic characteristics of HBV (with a prevalence of 8.1%) and the prevalence of HDV in Nigeria.
View Article and Find Full Text PDFPathogens
January 2025
Ist Clinic of Obstetrics and Gynecology, "Pius Brinzeu" County Clinical Emergency Hospital, 300723 Timisoara, Romania.
(1) Background: This study aimed to assess the association between inflammatory biomarkers and gastrointestinal side effects in HIV-positive patients on antiretroviral therapy (ART), with a specific focus on the impact of type II diabetes. (2) Methods: A total of 320 participants were divided into three groups: 120 HIV-positive without diabetes, 80 HIV-positive with type II diabetes, and 120 controls. Biomarkers such as CRP, IL-6, and TNF-α, along with gastrointestinal symptoms, were measured before and six months after ART.
View Article and Find Full Text PDFMicroorganisms
January 2025
Department of Pediatrics, Faculty of Medicine, "Grigore T. Popa" University of Medicine and Pharmacy, 700115 Iasi, Romania.
Hepatitis B virus (HBV) infections remain a significant global health challenge, especially in low- and middle-income countries where access to healthcare services is often limited. This study aimed to assess the prevalence of hepatitis B virus (HBV), hepatitis delta virus (HDV), hepatitis C virus (HCV), and human immunodeficiency virus (HIV) co-infections in a cohort of 426,528 patients tested for HBsAg in Romania between 2018 and 2023. Of the 17,082 HBsAg-positive individuals (4.
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