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dc.contributor.authorAlvarez, Patricia
dc.contributor.authorFernández McPhee, Carolina
dc.contributor.authorPrieto, Luis
dc.contributor.authorMartín, Leticia
dc.contributor.authorObiang, Jacinta
dc.contributor.authorAvedillo, Pedro
dc.contributor.authorVargas, Antonio
dc.contributor.authorRojo, Pablo
dc.contributor.authorBenito, Agustin 
dc.contributor.authorRamos, José Tomás
dc.contributor.authorHolguín, África
dc.identifier.citationPLoS One. 2016;11(10):e0165333es_ES
dc.description.abstractOBJECTIVES: This is the first study describing drug resistance mutations (DRM) and HIV-1 variants among infected pregnant women in Equatorial Guinea (GQ), a country with high (6.2%) and increasing HIV prevalence. METHODS: Dried blood spots (DBS) were collected from November 2012 to December 2013 from 69 HIV-1 infected women participating in a prevention of mother-to-child transmission program in the Hospital Regional of Bata and Primary Health Care Centre María Rafols, Bata, GQ. The transmitted (TDR) or acquired (ADR) antiretroviral drug resistance mutations at partial pol sequence among naive or antiretroviral therapy (ART)-exposed women were defined following WHO or IAS USA 2015 lists, respectively. HIV-1 variants were identified by phylogenetic analyses. RESULTS: A total of 38 of 69 HIV-1 specimens were successfully amplified and sequenced. Thirty (79%) belonged to ART-experienced women: 15 exposed to nucleoside reverse transcriptase inhibitors (NRTI) monotherapy, and 15 to combined ART (cART) as first regimen including two NRTI and one non-NRTI (NNRTI) or one protease inhibitor (PI). The TDR rate was only found for PI (3.4%). The ADR rate was 37.5% for NNRTI, 8.7% for NRTI and absent for PI or NRTI+NNRTI. HIV-1 group M non-B variants caused most (97.4%) infections, mainly (78.9%) recombinants: CRF02_AG (55.2%), CRF22_A101 (10.5%), subtype C (10.5%), unique recombinants (5.3%), and A3, D, F2, G, CRF06_cpx and CRF11_cpx (2.6% each). CONCLUSIONS: The high rate of ADR to retrotranscriptase inhibitors (mainly to NNRTIs) observed among pretreated pregnant women reinforces the importance of systematic DRM monitoring in GQ to reduce HIV-1 resistance transmission and to optimize first and second-line ART regimens when DRM are present.es_ES
dc.publisherPublic Library of Science (PLOS) es_ES
dc.subject.meshDrug Resistance, Viral es_ES
dc.subject.meshEquatorial Guinea es_ES
dc.subject.meshFemale es_ES
dc.subject.meshHIV Infections es_ES
dc.subject.meshHumans es_ES
dc.subject.meshMutation es_ES
dc.subject.meshPregnancy es_ES
dc.subject.meshYoung Adult es_ES
dc.titleHIV-1 Variants and Drug Resistance in Pregnant Women from Bata (Equatorial Guinea): 2012-2013es_ES
dc.typeresearch articlees_ES
dc.rights.licenseAtribución-NoComercial-CompartirIgual 4.0 Internacional*
dc.identifier.journalPloS onees_ES
dc.repisalud.centroISCIII::Centro Nacional de Medicina Tropicales_ES
dc.rights.accessRightsopen accesses_ES

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Atribución-NoComercial-CompartirIgual 4.0 Internacional
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