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Home / Archives for Layze Braz de Oliveira

Determinants of COVID-19 Vaccine Hesitancy in Portuguese-Speaking Countries: A Structural Equations Modeling Approach

  • Autores: Álvaro Francisco Lopes de Sousa, Jules Ramon Brito Teixeira, Iracema Lua, Fernanda de Oliveira Souza, Andrêa Jacqueline Fortes Ferreira, Guilherme Schneider, Herica Emilia Félix de Carvalho, Layze Braz de Oliveira, Shirley Verônica Melo Almeida Lima, Anderson Reis de Sousa, Telma Maria Evangelista de Araújo, Emerson Lucas Silva Camargo, Mônica Oliveira Batista Oriá, Isabel Craveiro, Tânia Maria de Araújo, Isabel Amélia Costa Mendes, Carla Arena Aparecida Ventura, Isabel Sousa, Rodrigo Mota de Oliveira, Manuel Simão, Inês Fronteira
  • Ano de Publicação: 2021
  • Journal: Vaccines, vol 9, art 1167
  • Link: https://www.mdpi.com/2076-393X/9/10/1167

COVID-19 vaccine hesitancy (VH) has caused concerns due to the possible fluctuations that may occur directly impacting the control of the pandemic. In this study, we aimed to estimate the prevalence and factors associated with COVID-19 VH in Portuguese-speaking countries.
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Sexual Exposure to HIV Infection during the COVID-19 Pandemic in Men Who Have Sex with Men (MSM): A Multicentric Study

  • Autores: Álvaro Francisco Lopes de Sousa, Shirley Verônica Melo Almeida Lima, João Victor Rocha, Herica Emilia Félix de Carvalho, Artur Acelino Francisco Luz Nunes Queiroz, Guilherme Schneider, Layze Braz de Oliveira, Emerson Lucas Silva Camargo, Adélia Dalva da Silva Oliveira, Isabel Amélia Costa Mendes, Inês Fronteira
  • Ano de Publicação: 2021
  • Journal: International Journal of Environmental Research and Public Health, 18(18), art 9584
  • Link: https://doi.org/10.3390/ijerph18189584

ABSTRACT The practice of sex with casual partners without the use of adequate prevention in the period of social distancing due to the COVID-19 pandemic among men who have sex with men (MSM) can expose them to the risk of infection by the HIV virus. To assess this, we conducted an online survey in April […]
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The authors’ reply to comments on a paper about chemsex during COVID

  • Autores: Álvaro Francisco Lopes de Sousa, Artur Acelino Francisco Luz Nunes Queiroz, Shirley Verônica Melo Almeida Lima, Priscilla Dantas Almeida, Layze Braz de Oliveira, Jeremias Salomão Chone, Telma Maria Evangelista Araújo, Sandra Mara Silva Brignol, Anderson Reis de Sousa, Isabel Amélia Costa Mendes, Sónia Dias, Inês Fronteira
  • Ano de Publicação: 2021
  • Journal: Cadernos de Saúde Pública, 37(3), e00029921
  • Link: https://doi.org/10.1590/0102-311X00029921

LETTER Dear researchers, We appreciate the interest in our publication and the comments on the content of the article, which we received with great esteem and consideration. Generally, the authors agree and reinforce the importance of our findings, but question two central points: (1) why our research, against the most recent literature, points to an […]
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Chemsex practice among men who have sex with men (MSM) during social isolation from COVID-19: multicentric online survey

  • Autores: Álvaro Francisco Lopes de Sousa, Artur Acelino Francisco Luz Nunes Queiroz, Shirley Verônica Melo Almeida Lima, Priscilla Dantas Almeida, Layze Braz de Oliveira, Jeremias Salomão Chone, Telma Maria Evangelista Araújo, Sandra Mara Silva Brignol, Anderson Reis de Sousa, Isabel Amélia Costa Mendes, Sónia Dias, Inês Fronteira
  • Ano de Publicação: 2020
  • Journal: Cadernos de Saúde Pública, 36(12), art e00202420
  • Link: https://doi.org/10.1590/0102-311X00202420

ABSTRACT The aim of this study was to investigate factors associated with sex practice under the effect of drugs (chemsex) among men who have sex with men (MSM) during the period of social isolation in the context of the COVID-19 pandemic. A multicenter online survey was applied to Brazil and Portugal in April 2020 when […]
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Casual Sex among Men Who Have Sex with Men (MSM) during the Period of Sheltering in Place to Prevent the Spread of COVID-19

  • Autores: Álvaro Francisco Lopes de Sousa, Layze Braz de Oliveira, Artur Acelino Francisco Luz Nunes Queiroz, Herica Emilia Félix de Carvalho, Guilherme Schneider, Emerson Lucas Silva Camargo, Telma Maria Evangelista de Araújo, Sandra Brignol, Isabel Amélia Costa Mendes, Inês Fronteira, Willi McFarland
  • Ano de Publicação: 2021
  • Journal: International Journal of Environmental Research and Public Health, 18(6), art 3266
  • Link: https://doi.org/10.3390/ijerph18063266

ABSTRACT ‘Objectives:’ We investigated the extent to which Brazilian and Portuguese Men Who Have Sex with Men (MSM) had casual sex partners outside their homes during the period of sheltering in place for the COVID-19 pandemic. ‘Methods:’ An online survey was conducted in Brazil and Portugal in April, during the period of social isolation for […]
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About GHTM

GHTM is a R&D Center that brings together researchers from IHMT with a track record in Tropical Medicine and International/Global Health. It aims at strengthening Portugal's role as a leading partner in the development and implementation of a global health research agenda. Our evidence-based interventions contribute to the promotion of equity in health and to improve the health of populations.

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