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Characterization of HIV-1 Epidemic in Kyrgyzstan.
Sivay, Mariya V; Totmenin, Alexei V; Zyryanova, Daria P; Osipova, Irina P; Nalimova, Tatyana M; Gashnikova, Mariya P; Ivlev, Vladimir V; Meshkov, Ivan O; Chokmorova, Umut Z; Narmatova, Elmira; Motorov, Ulukbek; Akmatova, Zhyldyz; Asybalieva, Nazgul; Bekbolotov, Aybek A; Kadyrbekov, Ulan K; Maksutov, Rinat A; Gashnikova, Natalya M.
Afiliación
  • Sivay MV; Department of Retroviruses, State Research Center of Virology and Biotechnology "Vector", Koltsovo, Russia.
  • Totmenin AV; Department of Retroviruses, State Research Center of Virology and Biotechnology "Vector", Koltsovo, Russia.
  • Zyryanova DP; Department of Retroviruses, State Research Center of Virology and Biotechnology "Vector", Koltsovo, Russia.
  • Osipova IP; Department of Retroviruses, State Research Center of Virology and Biotechnology "Vector", Koltsovo, Russia.
  • Nalimova TM; Department of Retroviruses, State Research Center of Virology and Biotechnology "Vector", Koltsovo, Russia.
  • Gashnikova MP; Department of Retroviruses, State Research Center of Virology and Biotechnology "Vector", Koltsovo, Russia.
  • Ivlev VV; Department of Retroviruses, State Research Center of Virology and Biotechnology "Vector", Koltsovo, Russia.
  • Meshkov IO; National Research Center for Hematology, Moscow, Russia.
  • Chokmorova UZ; Republican Center of AIDS, Ministry of Health of Kyrgyzstan, Bishkek, Kyrgyzstan.
  • Narmatova E; Osh Regional Center of AIDS Treatment and Prevention, Osh, Kyrgyzstan.
  • Motorov U; Osh Regional Center of AIDS Treatment and Prevention, Osh, Kyrgyzstan.
  • Akmatova Z; Republican Center of AIDS, Ministry of Health of Kyrgyzstan, Bishkek, Kyrgyzstan.
  • Asybalieva N; Republican Center of AIDS, Ministry of Health of Kyrgyzstan, Bishkek, Kyrgyzstan.
  • Bekbolotov AA; Republican Center of AIDS, Ministry of Health of Kyrgyzstan, Bishkek, Kyrgyzstan.
  • Kadyrbekov UK; Republican Center of AIDS, Ministry of Health of Kyrgyzstan, Bishkek, Kyrgyzstan.
  • Maksutov RA; Department of Retroviruses, State Research Center of Virology and Biotechnology "Vector", Koltsovo, Russia.
  • Gashnikova NM; Department of Retroviruses, State Research Center of Virology and Biotechnology "Vector", Koltsovo, Russia.
Front Microbiol ; 12: 753675, 2021.
Article en En | MEDLINE | ID: mdl-34721358
Kyrgyzstan has one of the highest rates of HIV-1 spread in Central Asia. In this study, we used molecular-epidemiological approaches to examine the HIV-1 epidemic in Kyrgyzstan. Samples were obtained from HIV-positive individuals who visited HIV/AIDS clinics. Partial pol gene sequences were used to identify HIV-1 subtypes and drug resistance mutations (DRMs) and to perform phylogenetic analysis. Genetic diversity and history reconstruction of the major HIV-1 subtypes were explored using BEAST. This study includes an analysis of 555 HIV-positive individuals. The study population was equally represented by men and women aged 1-72 years. Heterosexual transmission was the most frequent, followed by nosocomial infection. Men were more likely to acquire HIV-1 during injection drug use and while getting clinical services, while women were more likely to be infected through sexual contacts (p < 0.01). Heterosexual transmission was the more prevalent among individuals 25-49 years old; individuals over 49 years old were more likely to be persons who inject drugs (PWID). The major HIV-1 variants were CRF02_AG, CRF63_02A, and sub-subtype A6. Major DRMs were detected in 26.9% of the study individuals; 62.2% of those had DRMs to at least two antiretroviral (ARV) drug classes. Phylogenetic analysis revealed a well-defined structure of CRF02_AG, indicating locally evolving sub-epidemics. The lack of well-defined phylogenetic structure was observed for sub-subtype A6. The estimated origin date of CRF02_AG was January 1997; CRF63_02A, April 2004; and A6, June 1995. A rapid evolutionary dynamic of CRF02_AG and A6 among Kyrgyz population since the mid-1990s was observed. We observed the high levels of HIV-1 genetic diversity and drug resistance in the study population. Complex patterns of HIV-1 phylogenetics in Kyrgyzstan were found. This study highlights the importance of molecular-epidemiological analysis for HIV-1 surveillance and treatment implementation to reduce new HIV-1 infections.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Front Microbiol Año: 2021 Tipo del documento: Article País de afiliación: Rusia Pais de publicación: Suiza

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Front Microbiol Año: 2021 Tipo del documento: Article País de afiliación: Rusia Pais de publicación: Suiza