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Incidence and estimated risk of residual transmission of hepatitis a virus and parvovirus B19 by blood transfusion in the state of Rio De Janeiro - Brazil: a retrospective study.
Virol J
January 2025
Laboratório de Desenvolvimento Tecnológico em Virologia, Instituto Oswaldo cruz, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brasil.
Background: Nonenveloped viruses, such as hepatitis A virus (HAV) and parvovirus B19 (B19V), are not inactivated by detergents and solvents commonly used to manufacture plasma derivatives. Cases of transfusion-transmitted HAV and B19V have already been described in several countries. This study aimed to determine the incidence of HAV and B19V asymptomatic infections in blood donors from Rio de Janeiro and evaluate the residual risk of transmission to blood derivative recipients.
View Article and Find Full Text PDFBackground: Due to the unique geographical and climatic conditions in Nagqu (Tibet), the blood station laboratory was only fully established and accredited by 2020. This study validated the performance of the laboratory's blood screening system and analyzed recent trends in blood donation and screening effectiveness.
Methods: Various serum samples were used to assess the performance of hepatitis B, hepatitis C, HIV, and syphilis tests, both serological and nucleic acid tests.
High prevalence of hepatitis C virus infection among adolescents and young adults attending HIV and sexual health clinics.
Int J STD AIDS
December 2024
Department of Pediatrics, Division of Infectious Disease, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
Background: The prevalence of hepatitis C virus (HCV) infection among Thai adults is 0.5%-1.0%.
View Article and Find Full Text PDFUsing HIV and Hepatitis C Molecular Epidemiology to Investigate Assisted Partner Services Recruitment Among People Who Inject Drugs in Kenya.
AIDS Res Hum Retroviruses
December 2024
Institute for Disease Modeling, Bill & Melinda Gates Foundation, Seattle, WA.
Sexual and/or injecting partners of people who inject drugs (PWID) may have an elevated risk of HIV infection either from sharing a transmission network or an epidemiological environment. We estimated the degree of similarity between HIV and hepatitis C (HCV) sequences from PWID and their partners to assess whether partner-based recruitment identifies sexual or injecting partners within transmission networks. We used assisted partner services (APS) to recruit sexual and injecting partners of PWID living with HIV in Kenya and evaluated trends in the TN93 distances (an adjusted measure of sequence similarity) of the HIV-1 and HCV sequences from partner pairs.
View Article and Find Full Text PDFBackground: Despite saving a vast number of lives through blood transfusions, transfusion-transmitted infections (TTIs) still threaten the lives of people needing blood transfusion. Hence, screening blood donors and reviewing the prevalence of TTIs amongst blood donors might show the impact of these infections among our people. The aim of this study was to evaluate the prevalence rates of transfusion-transmitted infections among blood donors in Makkah as foundation for providing harmless blood transfusion in Makkah, Saudi Arabia.
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