Laboratory diagnosis of HIV infection in travestis and transgender women in Brazil, 2019-2021

Authors

  • Márcia Jorge Castejon Instituto Adolfo Lutz - Centro de Imunologia – São Paulo – SP - Brasil
  • Carmem Aparecida de Freitas Oliveira Instituto Adolfo Lutz - Centro de Imunologia – São Paulo – SP - Brasil https://orcid.org/0000-0002-3392-7617
  • Luís Fernando de Macedo Brígido Instituto Adolfo Lutz - Centro de Virologia – São Paulo – SP - Brasil
  • Rosemeire Yamashiro Instituto Adolfo Lutz - Centro de Imunologia – São Paulo – SP - Brasil https://orcid.org/0000-0002-6932-8915
  • Katia Cristina Bassichetto Faculdade de Ciências Médicas da Santa Casa de São Paulo – São Paulo – SP – Brasil https://orcid.org/0000-0003-3645-025X
  • Norberto Camilo Campos Instituto Adolfo Lutz - Centro de Virologia – São Paulo – SP - Brasil https://orcid.org/0000-0003-1425-9825
  • Elaine Lopes de Oliveira Instituto Adolfo Lutz - Centro de Imunologia – São Paulo – SP - Brasil
  • Ana Rita Coimbra Motta Castro Universidade Federal de Mato Grosso do Sul – Campo Grande – MS – Brasil
  • Inês Dourado Instituto de Saúde Coletiva – Salvador – BA – Brasil https://orcid.org/0000-0003-1675-2146
  • Laio Magno Instituto de Saúde Coletiva – Salvador – BA – Brasil https://orcid.org/0000-0003-3752-0782
  • Roberto José de Carvalho da Silva Centro de Referência e Treinamento DST/Aids, São Paulo, SP, Brasil https://orcid.org/0000-0001-9186-0206
  • Maria Amélia de Sousa Mascena Veras Faculdade de Ciências Médicas da Santa Casa de São Paulo – São Paulo – SP – Brasil https://orcid.org/0000-0002-1159-5762

DOI:

https://doi.org/10.57148/bepa.2023.v.20.38087

Keywords:

point-of-care testing, viral load, HIV antibodies, immunoassay, transgender persons, highly active antiretroviral therapy

Abstract

HIV prevalence among travestis and transgender women (TrTW) is disproportionately higher when compared to the overall Brazilian population. The objective of this study was to evaluate, through conventional serological and molecular tests for the diagnosis of HIV infection, blood samples of TrTW residents of five Brazilian capitals with previous reactive HIV point-of-care rapid tests (RT). A total of 435 samples with at least one reactive HIV result on point-of-care tests were sent to the HIV reference laboratory in São Paulo State – the Adolfo Lutz Institute – for further evaluation by conventional laboratory tests. From total, 432 (99.3%) samples were reactive for HIV infection in conventional laboratory assays, comprising 98/432 (22.7%) with HIV-1 viral load over 5,000 copies/ml, and 334/432 (77.3%) reactive to serological tests (chemiluminescence immunoassay or ELISA, and rapid immunoblotting). The three remaining samples (0.7%) were classified as “indeterminate for HIV” based on conventional serological and molecular assays. Analytical sensitivity of different molecular and serological assays used in this study may have varied due to HIV-1 viral suppression resulting from antiretroviral therapy (ART). Additional studies are needed to better understand the impact of therapy on HIV diagnosis.

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Published

2023-05-30

How to Cite

1.
Castejon MJ, Oliveira CA de F, Brígido LF de M, Yamashiro R, Bassichetto KC, Campos NC, Oliveira EL de, Castro ARCM, Dourado I, Magno L, Silva RJ de C da, Veras MA de SM. Laboratory diagnosis of HIV infection in travestis and transgender women in Brazil, 2019-2021. Bepa [Internet]. 2023 May 30 [cited 2024 May 12];20:e38087. Available from: https://periodicos.saude.sp.gov.br/BEPA182/article/view/38087

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