Publications by authors named "Sandra Maria do Vale Leone de Oliveira"
Genomic epidemiology of the SARS-CoV-2 epidemic in Brazil.
Marta Giovanetti Svetoslav Nanev Slavov Vagner Fonseca Eduan Wilkinson Houriiyah Tegally Elaine Cristina de Oliveira Loyze Paola Oliveira de Lima Luciana Reboredo de Oliveira da Silva Sandra Maria do Vale Leone de Oliveira Tulio de Oliveira
Nat Microbiol
September 2022
Article Synopsis
- Brazil has experienced high COVID-19 cases and deaths, making Latin America a major pandemic epicenter, with early sustained virus transmission and ongoing gaps in understanding.
- Researchers analyzed over 17,000 near-complete SARS-CoV-2 genomes from across Brazil and Paraguay, finding multiple viral lineages predominantly imported from Europe before local transmission clusters emerged after November 2020.
- Effective genomic surveillance has been crucial in tracking the real-time spread of significant variants, such as Gamma (P.1) and Zeta (P.2), and understanding cross-border virus movement into Paraguay.
Genomic epidemiology reveals the impact of national and international restrictions measures on the SARS-CoV-2 epidemic in Brazil.
Marta Giovanetti Svetoslav Nanev Slavov Vagner Fonseca Eduan Wilkinson Houriiyah Tegally Elaine Cristina de Oliveira Loyze Paola Oliveira de Lima Luciana Reboredo de Oliveira da Silva Sandra Maria do Vale Leone de Oliveira Tulio de Oliveira
medRxiv
March 2022
Article Synopsis
- - Brazil became a major COVID-19 epicenter in Latin America by May 2021, experiencing high transmission rates and deaths, but gaps remain in understanding how the virus spreads nationally.
- - The study analyzes nearly complete SARS-CoV-2 genomes from Brazil and Paraguay, revealing that the initial wave was marked by multiple imported viral lineages mainly from Europe, leading to significant local transmission clusters.
- - As the pandemic progressed without effective restrictions, Brazil saw the emergence and spread of concerning variants like Gamma and Zeta, highlighting the need for extensive genomic surveillance in South America for better pandemic management and public health strategies.
Background: N95 respiratory protection masks are used by healthcare professionals to prevent contamination from infectious microorganisms transmitted by droplets or aerosols.
Methods: We conducted a rapid review of the literature analyzing the effectiveness of decontamination methods for mask reuse. The database searches were carried out up to September 2020.