SARS-CoV-2 infection prevalence and associated factors: a serial population-based study in Espírito Santo, Brazil, May to June 2020.

Objective: To analyze SARS-CoV-2 seroprevalence and association of sociodemographic and clinical aspects in the state of Espírito Santo, Brazil.

Methods: This was a serial cross-sectional study carried out in four phases, using households as the unit of analysis, from May to June 2020. Eleven municipalities were surveyed, with a sample of 4,500 households in each phase.

Serological prevalence of SARS-CoV-2 infection among prison system workers in the state of Espírito Santo, Brazil, 2020.

Objective: To estimate the serological prevalence of SARS-CoV-2 infection among prison system workers in the state of Espírito Santo, Brazil, between August-September 2020.

Methods: This was a stratified sample survey, using interviews and serological tests for SARS-CoV-2.

Results: Among the 986 interviewers, the serological prevalence of SARS-CoV-2 infection was 11.

Prevalence of COVID-19 infection in the prison system in Espírito Santo/Brazil: persons deprived of liberty and justice workers.

Objective: To present a prevalence study held in prisons and estimate the percentage of persons deprived of liberty, health professionals, and prison officers infected with SARS-CoV-2 in Espírito Santo (ES).

Methods: This is a prevalence study with a sample from 34 ES prisons, stratified between August 31 and September 4, 2020, following the Population-based age-stratified seroepidemiological investigation protocol for COVID-19 virus infection. The participants were interviewed and underwent rapid tests to detect immunoglobulin G and M in the groups mentioned.

Living conditions, seroprevalence and symptoms of COVID-19 in slums in the Metropolitan Region of Vitória (Espírito Santo).

Objectives: to estimate the prevalence of SARS-CoV-2 infection in residents of the Greater Vitória region living in subnormal and non-subnormal agglomerates, and to compare sociodemographic and clinical characteristics of total residents (infected and not infected with SARS-CoV-2) between them.

Methods: Population-based prevalence study conducted by serological testing in 2020, with a study unit in households in Greater Vitória, grouped into census tracts classified as sub-normal agglomerates and non-sub-normal agglomerates. The two groups were compared in terms of prevalence and associated factors.

COVID-19 in children, adolescents and young adults: a cross-sectional study in Espírito Santo, Brazil, 2020.

Objective: To analyze self-reported sociodemographic and clinical characteristics among individuals aged 2 to 22 years and possible associations with SARS-CoV-2 infection in Espírito Santo, Brazil.

Methods: This was a serial cross-sectional population-based study carried out from May to June 2020. The COVID-19 positivity rate was assessed by serological testing, and associated factors were assessed using Pearson's chi-square test (5% significance level).

Nosocomial infection with cephalosporin-resistant Klebsiella pneumoniae is not associated with increased mortality.

Objective: To evaluate whether resistance to third-generation cephalosporins and/or aztreonam was associated with a higher mortality rate among patients with nosocomial Klebsiella pneumoniae infections.

Design: Retrospective cohort study.Setting.