Cohort-profile: Household transmission of SARS-CoV-2 in a low-resource community in Rio de Janeiro, Brazil

Article Infectious Diseases

A prospective, multicentre, cohort study to assess the incidence of dengue illness in households from selected communities in Brazil (2014-2018)

Daniele Fernandes de Aguiar et al.

Summary: This study aimed to estimate the incidence of dengue infection in different regions of Brazil, revealing a laboratory-confirmed symptomatic infection rate of 6.1 per 1000 person-years, while the incidence of inapparent primary dengue infection was substantially higher.

INTERNATIONAL JOURNAL OF INFECTIOUS DISEASES (2021)

Add to Collection

Article Pediatrics

SARS-CoV-2 Infection Dynamics in Children and Household Contacts in a Slum in Rio de Janeiro

Pamella Lugon et al.

Summary: The study found that in this impoverished urban area, children are not the source of SARS-CoV-2 infection and mostly acquire the virus from adults. The findings suggest that in settings like this, schools and child care facilities could potentially be reopened safely if proper COVID-19 mitigation measures are in place and staff are adequately immunized.

PEDIATRICS (2021)

Add to Collection

Article Virology

Why Did ZIKV Perinatal Outcomes Differ in Distinct Regions of Brazil? An Exploratory Study of Two Cohorts

Luana Damasceno et al.

Summary: The study found significant differences in adverse pregnancy/infant outcomes among pregnant women with ZIKV infection in Rio and Manaus, with higher rates in Rio. Factors associated with adverse outcomes were Zika attack rates and infection in the first trimester of pregnancy, while pre-existing immunity to DENV showed no association with outcomes.

VIRUSES-BASEL (2021)

Add to Collection

Review Medicine, General & Internal

Factors Associated With Household Transmission of SARS-CoV-2 An Updated Systematic Review and Meta-analysis

Zachary J. Madewell et al.

Summary: This study conducted a systematic review and meta-analysis on the transmission of SARS-CoV-2 in households. By combining previous studies with new data, it found a household secondary attack rate of 18.9%. The study also analyzed characteristics of contacts and variants, showing higher SAR in contacts with comorbidities and for the B.1.1.7 variant.

JAMA NETWORK OPEN (2021)

Add to Collection

Article Public, Environmental & Occupational Health