Comparative analysis of the risks of hospitalisation and death associated with SARS-CoV-2 omicron (B.1.1.529) and delta (B.1.617.2) variants in England: a cohort study

Reduced risk of hospitalisation among reported COVID-19 cases infected with the SARS-CoV-2 Omicron BA.1 variant compared with the Delta variant, Norway, December 2021 to January 2022

(2022) Lamprini Veneti et al.   Eurosurveillance

Estimates of SARS-CoV-2 Omicron Variant Severity in Ontario, Canada

(2022) Ana Cecilia Ulloa et al.   JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION

Early assessment of the clinical severity of the SARS-CoV-2 omicron variant in South Africa: a data linkage study

(2022) Nicole Wolter et al.   LANCET

Altered TMPRSS2 usage by SARS-CoV-2 Omicron impacts tropism and fusogenicity

(2022) Bo Meng et al.   NATURE

SARS-CoV-2 Omicron variant replication in human bronchus and lung ex vivo

(2022) Kenrie P. Y. Hui et al.   NATURE

Covid-19 Vaccine Effectiveness against the Omicron (B.1.1.529) Variant

(2022) Nick Andrews et al.   NEW ENGLAND JOURNAL OF MEDICINE

Timeliness and completeness of laboratory-based surveillance of COVID-19 cases in England

(2021) T. Clare et al.   PUBLIC HEALTH

Healthcare-associated COVID-19 in England: A national data linkage study

(2021) Alex Bhattacharya et al.   JOURNAL OF INFECTION

SARS-CoV-2 Delta VOC in Scotland: demographics, risk of hospital admission, and vaccine effectiveness

(2021) Aziz Sheikh et al.   LANCET

Risk of hospitalisation associated with infection with SARS-CoV-2 lineage B.1.1.7 in Denmark: an observational cohort study

(2021) Peter Bager et al.   LANCET INFECTIOUS DISEASES

Hospital admission and emergency care attendance risk for SARS-CoV-2 delta (B.1.617.2) compared with alpha (B.1.1.7) variants of concern: a cohort study

(2021) Katherine A Twohig et al.   LANCET INFECTIOUS DISEASES

Evaluation of the relative virulence of novel SARS-CoV-2 variants: a retrospective cohort study in Ontario, Canada

(2021) David N. Fisman et al.   CANADIAN MEDICAL ASSOCIATION JOURNAL

Hospitalisation associated with SARS-CoV-2 delta variant in Denmark

(2021) Peter Bager et al.   LANCET INFECTIOUS DISEASES

Decreased severity of disease during the first global omicron variant covid-19 outbreak in a large hospital in tshwane, south africa

(2021) F. Abdullah et al.   INTERNATIONAL JOURNAL OF INFECTIOUS DISEASES