Protection against omicron (B.1.1.529) BA.2 reinfection conferred by primary omicron BA.1 or pre-omicron SARS-CoV-2 infection among health-care workers with and without mRNA vaccination: a test-negative case-control study

Striking antibody evasion manifested by the Omicron variant of SARS-CoV-2

(2022) Lihong Liu et al.   NATURE

COVID-19 vaccine effectiveness against the omicron (BA.2) variant in England

(2022) Freja C M Kirsebom et al.   LANCET INFECTIOUS DISEASES

Vaccination plus previous infection: protection during the omicron wave in Brazil

(2022) Thiago Cerqueira-Silva et al.   LANCET INFECTIOUS DISEASES

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

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

Effect of mRNA Vaccine Boosters against SARS-CoV-2 Omicron Infection in Qatar

(2022) Laith J. Abu-Raddad et al.   NEW ENGLAND JOURNAL OF MEDICINE

Neutralization of the SARS-CoV-2 Omicron BA.1 and BA.2 Variants

(2022) Jingyou Yu et al.   NEW ENGLAND JOURNAL OF MEDICINE

Effects of Previous Infection and Vaccination on Symptomatic Omicron Infections

(2022) Heba N. Altarawneh et al.   NEW ENGLAND JOURNAL OF MEDICINE

SARS-CoV-2 infection rates of antibody-positive compared with antibody-negative health-care workers in England: a large, multicentre, prospective cohort study (SIREN)

(2021) Victoria Jane Hall et al.   LANCET

Risk of Reinfection After Seroconversion to Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2): A Population-based Propensity-score Matched Cohort Study

(2021) Antonio Leidi et al.   CLINICAL INFECTIOUS DISEASES

Identifiability and Estimation Under the Test-negative Design With Population Controls With the Goal of Identifying Risk and Preventive Factors for SARS-CoV-2 Infection

(2021) Mireille E. Schnitzer et al.   EPIDEMIOLOGY

Definitions for coronavirus disease 2019 reinfection, relapse and PCR re-positivity

(2020) Dafna Yahav et al.   CLINICAL MICROBIOLOGY AND INFECTION