Increased Household Secondary Attacks Rates With Variant of Concern Severe Acute Respiratory Syndrome Coronavirus 2 Index Cases | Zendy

Sarah A. Buchan | Zendy; Semra Tibebu | Zendy; Nick Daneman | Zendy; Michael Whelan | Zendy; Thuva Vanniyasingam | Zendy; Michelle Murti | Zendy; Kevin A. Brown | Zendy

Open Access

Increased Household Secondary Attacks Rates With Variant of Concern Severe Acute Respiratory Syndrome Coronavirus 2 Index Cases

Author(s) -

Sarah A. Buchan,

Semra Tibebu,

Nick Daneman,

Michael Whelan,

Thuva Vanniyasingam,

Michelle Murti,

Kevin A. Brown

Publication year - 2021

Publication title -

clinical infectious diseases

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.44

H-Index - 336

eISSN - 1537-6591

pISSN - 1058-4838

DOI - 10.1093/cid/ciab496

Subject(s) - medicine , asymptomatic , attack rate , index (typography) , covid-19 , cohort , coronavirus , pediatrics , environmental health , epidemiology , virology , outbreak , disease , infectious disease (medical specialty) , world wide web , computer science

We compared secondary attack rates in households with B.1.1.7 variant of concern (VOC) versus non-VOC index cases in a matched cohort in Ontario, Canada. The secondary attack rate for VOC index cases was 1.31 times higher than non-VOC index cases. This increase was particularly accentuated for asymptomatic or presymptomatic index cases.

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