Three-quarters attack rate of SARS-CoV-2 in the Brazilian Amazon during a largely unmitigated epidemic
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spread rapidly in Manaus,
the capital of Amazonas state in northern Brazil. The attack rate there is an estimate of the …
the capital of Amazonas state in northern Brazil. The attack rate there is an estimate of the …
Higher risk of death from COVID-19 in low-income and non-White populations of São Paulo, Brazil
Introduction Little evidence exists on the differential health effects of COVID-19 on
disadvantaged population groups. Here we characterise the differential risk of …
disadvantaged population groups. Here we characterise the differential risk of …
COVID-19 herd immunity in the Brazilian Amazon
The herd immunity threshold is the proportion of a population that must be immune to an
infectious disease, either by natural infection or vaccination such that, in the absence of …
infectious disease, either by natural infection or vaccination such that, in the absence of …
SARS-CoV-2 antibody dynamics in blood donors and COVID-19 epidemiology in eight Brazilian state capitals: A serial cross-sectional study
Background: The COVID-19 situation in Brazil is complex due to large differences in the
shape and size of regional epidemics. Understanding these patterns is crucial to understand …
shape and size of regional epidemics. Understanding these patterns is crucial to understand …
[HTML][HTML] HCV genotypes, characterization of mutations conferring drug resistance to protease inhibitors, and risk factors among blood donors in São Paulo, Brazil
Background Hepatitis C virus (HCV) infection is a global health problem estimated to affect
almost 200 million people worldwide. The aim of this study is to analyze the subtypes and …
almost 200 million people worldwide. The aim of this study is to analyze the subtypes and …
[HTML][HTML] Transfusion-acquired HIV: history, evolution of screening tests, and current challenges of unreported antiretroviral drug use in Brazil
Prevention of HIV acquisition by blood transfusion from its emergence to the present day is
reviewed, and current challenges are delineated. The experience of Fundação Pró …
reviewed, and current challenges are delineated. The experience of Fundação Pró …
[HTML][HTML] Predicting SARS-CoV-2 variant spread in a completely seropositive population using semi-quantitative antibody measurements in blood donors
SARS-CoV-2 serologic surveys estimate the proportion of the population with antibodies
against historical variants, which nears 100% in many settings. New approaches are …
against historical variants, which nears 100% in many settings. New approaches are …
Influence of unreported HIV prophylaxis on the kinetics of post‐blood donation HIV seroconversion
AS Nishiya, NA Salles, C de Almeida‐Neto… - …, 2021 - Wiley Online Library
Abstract Background In 2020, of 110,000 blood donors screened for HIV exposure two
individuals were identified who were viral RNA‐positive but seronegative. One of the …
individuals were identified who were viral RNA‐positive but seronegative. One of the …
Occult and active hepatitis B virus detection in donated blood in São Paulo, Brazil
Background The present study determined the HBV antigen, antibody, and DNA status in
blood donations deemed to be HBV positive. Individuals with an occult HBV infection (OBI) …
blood donations deemed to be HBV positive. Individuals with an occult HBV infection (OBI) …
[HTML][HTML] Molecular characterization of viruses associated with encephalitis in São Paulo, Brazil
The objective of this study was to characterize the prevalence of viral encephalitis due to
arbovirus infection of the Togaviridae and Flaviviridae families in São Paulo, Brazil. A total of …
arbovirus infection of the Togaviridae and Flaviviridae families in São Paulo, Brazil. A total of …