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

COVID-19 Humans Incidence Ontario / epidemiology SARS-CoV-2
COVID-19 SARS-CoV-2 household transmission variants of concern

Journal

Clinical infectious diseases : an official publication of the Infectious Diseases Society of America
ISSN: 1537-6591
Titre abrégé: Clin Infect Dis
Pays: United States
ID NLM: 9203213

Informations de publication

Date de publication:
01 03 2022
Historique:
received: 01 04 2021
pubmed: 10 6 2021
medline: 8 3 2022
entrez: 9 6 2021
Statut: ppublish

Résumé

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.

Identifiants

DOI: 10.1093/cid/ciab496 PMID: 34105720 PMC: PMC8384411
pubmed: 34105720
pii: 6295404
doi: 10.1093/cid/ciab496
pmc: PMC8384411
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

703-706

Subventions

Organisme : Public Health Ontario

Informations de copyright

Her Majesty the Queen in Right of Canada, as represented by the Public Health Ontario, 2021.

Auteurs

Sarah A Buchan (SA)

Health Protection, Public Health Ontario, Toronto, Ontario, Canada.
Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada.
ORCID: 0000-0002-5286-8974

Semra Tibebu (S)

Health Protection, Public Health Ontario, Toronto, Ontario, Canada.

Nick Daneman (N)

Health Protection, Public Health Ontario, Toronto, Ontario, Canada.
Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.
Division of Infectious Diseases, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.
Department of Medicine, University of Toronto, Toronto, Ontario, Canada.
Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada.

Michael Whelan (M)

Health Protection, Public Health Ontario, Toronto, Ontario, Canada.

Thuva Vanniyasingam (T)

Knowledge Services, Public Health Ontario, Toronto, Ontario, Canada.

Michelle Murti (M)

Health Protection, Public Health Ontario, Toronto, Ontario, Canada.
Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada.

Kevin A Brown (KA)

Health Protection, Public Health Ontario, Toronto, Ontario, Canada.
Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada.

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Classifications MeSH

questionsmedicales.fr › Maladies de l'appareil respiratoire › Infections de l'appareil respiratoire › Pneumopathie infectieuse › Pneumopathie virale › COVID-19 › Increased Household Secondary Attacks Rates...
questionsmedicales.fr › Eucaryotes › Animaux › Chordés › Vertébrés › Mammifères › Eutheria › Primates › Haplorhini › Catarrhini › Hominidae › Humains › Increased Household Secondary Attacks Rates...
questionsmedicales.fr › Environnement et santé publique › Santé publique › Méthodes épidémiologiques › Collecte de données › Registre civil › Morbidité › Incidence › Increased Household Secondary Attacks Rates...
questionsmedicales.fr › Régions géographiques › Amériques › Amérique du Nord › Canada › Ontario › Increased Household Secondary Attacks Rates...
questionsmedicales.fr › Virus › Virus à ARN › Virus à ARN à brin positif › Nidovirales › Coronaviridae › Coronavirus › Betacoronavirus › Virus du SRAS › SARS-CoV-2 › Increased Household Secondary Attacks Rates...