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Vacinação para influenza em idosos na pandemia COVID-19: estudo de base populac...
Menezes,Ana Maria Baptista; Hallal,Pedro Curi; Silveira,Mariângela Freitas; Wehrmeister,Fernando César; Horta,Bernardo LessaResumo Imunizações de rotina durante pandemias podem ser prejudicadas. Este estudo estimou a cobertura vacinal para influenza em idosos durante a COVID-19 através do EPICOVID-19, inquérito populacional realizado em 133 cidades sentinelas dos 26 estados brasileiros e Distrito Federal. Selecionou-se 25 setores censitários por cidade, amostragem proporcional ao tamanho, dez domicílios por setor e uma pessoa por do...
Time-dependent decay of detectable antibodies against SARS-CoV-2: A comparison ...
Silveira,Mariangela F; Mesenburg,Marilia A; Dellagostin,Odir A; Oliveira,Natasha R de; Maia,Mara AC; Santos,Francisco D; Vale,André; Menezes,Ana M BABSTRACT Background: Large-scale epidemiological studies of seroprevalence of antibodies against SARS-CoV-2 often rely on point-of-care tests that provide immediate results to participants. Yet, little is known on how long rapid tests remain positive after the COVID-19 episode, or how much variability exists across different brands and even among batches of the same test. Methods: In November 2020, we assessed ...
COVID-19 and social distancing among children and adolescents in Brazil
Barros,Fernando C; Hartwig,Fernando P; Barros,Aluísio J D; Menezes,Ana M B; Horta,Bernardo L; Struchiner,Cláudio J; Vidaletti,Luis PauloABSTRACT OBJECTIVE To estimate the prevalence of SARS-CoV-2 antibodies and the adherence to measures of social distancing in children and adolescents studied in three national surveys conducted in Brazil between May–June 2020. METHODS Three national serological surveys were conducted in 133 sentinel cities located in all 27 Federative Units. Multistage probability sampling was used to select 250 individuals per...
Population-level seropositivity trend for SARS-Cov-2 in Rio Grande do Sul, Brazil
Barros,Aluísio J D; Victora,Cesar G; Menezes,Ana M B; Horta,Bernardo L; Barros,Fernando C; Hartwig,Fernando P; Victora,Gabriel D; Vidaletti,Luis PauloABSTRACT OBJECTIVE To describe the evolution of seropositivity in the State of Rio Grande do Sul, Brazil, through 10 consecutive surveys conducted between April 2020 and April 2021. METHODS Nine cities covering all regions of the State were studied, 500 households in each city. One resident in each household was randomly selected for testing. In survey rounds 1–8 we used the rapid WONDFO SARS-CoV-2 Antibody Tes...
EPICOVID19 protocol: repeated serological surveys on SARS-CoV-2 antibodies in B...
Hallal,Pedro Curi; Barros,Fernando C; Silveira,Mariângela Freitas; Barros,Aluísio Jardim Dornellas de; Dellagostin,Odir Antonio; Pellanda,Lúcia CamposAbstract The first case of COVID-19 was reported in China in December 2019, and, as the virus has spread worldwide, the World Health Organization declared it a pandemic. Estimates on the number of COVID-19 cases do not reflect it real magnitude as testing is limited. Population based data on the proportion of the population with antibodies is relevant for planning public health policies. We aim to assess the pr...
Evolução da prevalência de infecção por COVID-19 no Rio Grande do Sul, Brasil: ...
Hallal,Pedro Curi; Horta,Bernardo L; Barros,Aluísio J D; Dellagostin,Odir A; Hartwig,Fernando P; Pellanda,Lúcia C; Struchiner,Cláudio JoséResumo A COVID-19 é uma doença produzida pelo vírus SARS-CoV-2. Esse vírus se espalhou rapidamente pelo mundo, o que levou a Organização Mundial da Saúde a classificar a COVID-19 como uma emergência de saúde internacional e, posteriormente, a declará-la uma pandemia. O número de casos confirmados, no dia 11 de abril de 2020, já passa de 1.700.000, porém esses dados não refletem a real prevalência de COVID-19 na...
Social distancing patterns in nine municipalities of Rio Grande do Sul, Brazil:...
Barros,Aluisio J D; Victora,Cesar G; Menezes,Ana M B; Horta,Bernardo L; Hartwig,Fernando; Victora,Gabriel; Pellanda,Lúcia C; Dellagostin,Odir AABSTRACT OBJECTIVE To describe social distancing practices in nine municipalities of the state of Rio Grande do Sul, Brazil, stratified by gender, age, and educational attainment. METHODS Two sequential cross-sectional studies were conducted in the municipalities of Canoas, Caxias do Sul, Ijuí, Passo Fundo, Pelotas, Porto Alegre, Santa Cruz do Sul, Santa Maria, and Uruguaiana to estimate the population prevalen...
Focus and coverage of Bolsa Família Program in the Pelotas 2004 birth cohort
Schmidt,Kelen H; Labrecque,Jeremy; Santos,Iná S; Matijasevich,Alicia; Barros,Fernando C; Barros,Aluisio J DABSTRACT OBJECTIVE To describe the focalization and coverage of Bolsa Família Program among the families of children who are part of the 2004 Pelotas birth cohort (2004 cohort). METHODS The data used derives from the integration of information from the 2004 cohort and the Cadastro Único para Programas Sociais do Governo Federal (CadÚnico – Register for Social Programs of the Federal Government), in the 2004-201...
Prevalência de nascimentos pré-termo por peso ao nascer: revisão sistemática
Silveira,Mariângela F; Matijasevich,Alicia; Horta,Bernardo L; Bettiol,Heloisa; Barbieri,Marco Antônio; Silva,Antonio A; Rondó,Patricia H COBJETIVO Estimar a prevalência de nascimentos pré-termo por faixas de peso ao nascer e obter uma equação para correção de estimativas. MÉTODOS Revisão sistemática da literatura nacional, de 1990 a 2012, para identificar estudos com coleta primária de informações sobre peso ao nascer e idade gestacional. Foram selecionados 12 que contribuíram com tabulações da prevalência de nascimentos pré-termo para faixas de ...
How many low birthweight babies in low- and middle-income countries are preterm?
Barros,Fernando C; Barros,Aluísio J D; Villar,José; Matijasevich,Alicia; Domingues,Marlos R; Victora,Cesar GOBJECTIVE: To assess the prevalence of preterm birth among low birthweight babies in low and middle-income countries. METHODS: Major databases (PubMed, LILACS, Google Scholar) were searched for studies on the prevalence of term and preterm LBW babies with field work carried out after 1990 in low- and middle-income countries. Regression methods were used to model this proportion according to LBW prevalence level...