Household transmission of SARS-CoV-2 during the Omicron wave in Shanghai, China: A case-ascertained study.

ABSTRACT:

Objectives

We used a case-ascertained study to determine the features of household transmission of SARS-CoV-2 Omicron variant in Shanghai, China.

Methods

In April 2022, we carried out a household transmission study from 309 households of 335 SARS-CoV-2 pediatric cases referred to a designated tertiary Children's Hospital. The detailed information can be collected from the 297 households for estimating the transmission parameters. The 236 households were qualified for estimating the secondary infection attack rates (SAR_I ) and secondary clinical attack rates (SAR_C ) among adult household contacts, characterizing the transmission heterogeneities in infectivity and susceptibility, and assessing the vaccine effectiveness.

Results

We estimated the mea

SUBMITTER: Wei Z 

PROVIDER: S-EPMC9946695 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature