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Changes in Transmission and Symptoms of SARS-CoV-2 in United States Households, April 2020-September 2022

2023-05-19 infectious diseases Title + abstract only
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BackgroundThe natural history of SARS-CoV-2 infection and transmission dynamics may have changed as SARS-CoV-2 has evolved and population immunity has shifted. MethodsHousehold contacts, enrolled from two multi-site case-ascertained household transmission studies (April 2020-April 2021 and September 2021-September 2022), were followed for 10-14 days after enrollment with daily collection of nasal swabs and/or saliva for SARS-CoV-2 testing and symptom diaries. SARS-CoV-2 virus lineage was determ...

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