SARS-CoV-2 Omicron variants BA.1 and BA.2 both show similarly reduced disease severity of COVID-19 compared to Delta, Germany, 2021 to 2022

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

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

Rapid epidemic expansion of the SARS-CoV-2 Omicron variant in southern Africa

(2022) Raquel Viana et al.   NATURE

Trends in Disease Severity and Health Care Utilization During the Early Omicron Variant Period Compared with Previous SARS-CoV-2 High Transmission Periods — United States, December 2020–January 2022

(2022) A. Danielle Iuliano et al.   MMWR-MORBIDITY AND MORTALITY WEEKLY REPORT

Molecular epidemiology of the SARS-CoV-2 variant Omicron BA.2 sub-lineage in Denmark, 29 November 2021 to 2 January 2022

(2022) Jannik Fonager et al.   Eurosurveillance

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

(2022) Tommy Nyberg et al.   LANCET

Increased risk of SARS-CoV-2 reinfection associated with emergence of Omicron in South Africa

(2022) Juliet R. C. Pulliam et al.   SCIENCE

Die verschiedenen Phasen der COVID-19-Pandemie in Deutschland: Eine deskriptive Analyse von Januar 2020 bis Februar 2021

(2021) Julia Schilling et al.   Bundesgesundheitsblatt-Gesundheitsforschung-Gesundheitsschutz

Relative Reproduction Number of SARS-CoV-2 Omicron (B.1.1.529) Compared with Delta Variant in South Africa

(2021) Hiroshi Nishiura et al.   Journal of Clinical Medicine

Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Infection in Children and Adolescents

(2020) Riccardo Castagnoli et al.   JAMA Pediatrics