Household transmission of COVID-19 among the earliest cases in Antananarivo, Madagascar.

ABSTRACT:

Background

Households are among the highest risk for the transmission of SARS-CoV-2. In sub-Saharan Africa, very few studies have described household transmission during the COVID-19 pandemic. Our work aimed to describe the epidemiologic parameters and analyze the secondary attack rate (SAR) in Antananarivo, Madagascar, following the introduction of SARS-CoV-2 in the country in March 2020.

Methods

A prospective case-ascertained study of all identified close contacts of laboratory-confirmed COVID-19 infections was conducted in Antananarivo from March to June 2020. Cases and household contacts were followed for 21 days. We estimated epidemic parameters of disease transmission by fitting parametric distributions based on infector-infected paired data. We assessed factors influe

SUBMITTER: Ratovoson R 

PROVIDER: S-EPMC8447323 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature