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SARS-CoV-2 Variants and Age-Dependent Infection Rates among Household and Nonhousehold Contacts.


ABSTRACT: To determine the effects of age and variants of concern on transmission of SARS-CoV-2, we analyzed infection rates among close contacts over 4 periods in Toyama Prefecture, Japan. Among household contacts, odds of infection were 6.2 times higher during the period of the Omicron variant than during previous periods, particularly among children and adolescents.

SUBMITTER: Miyahara R 

PROVIDER: S-EPMC10370865 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature

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SARS-CoV-2 Variants and Age-Dependent Infection Rates among Household and Nonhousehold Contacts.

Miyahara Reiko R   Tamura Kosuke K   Kato Tomoko T   Nakazaki Mineko M   Otani Kanako K   Ko Yura K YK   Kamigaki Taro T   Arima Yuzo Y   Tani Hideki H   Oishi Kazunori K   Suzuki Motoi M  

Emerging infectious diseases 20230621 8


To determine the effects of age and variants of concern on transmission of SARS-CoV-2, we analyzed infection rates among close contacts over 4 periods in Toyama Prefecture, Japan. Among household contacts, odds of infection were 6.2 times higher during the period of the Omicron variant than during previous periods, particularly among children and adolescents. ...[more]

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