Natural and hybrid immunity following four COVID-19 waves: A prospective cohort study of mothers in South Africa

Immune imprinting, breadth of variant recognition, and germinal center response in human SARS-CoV-2 infection and vaccination

(2022) Katharina Röltgen et al.   CELL

Increased risk of infection with SARS-CoV-2 Omicron BA.1 compared with Delta in vaccinated and previously infected individuals, the Netherlands, 22 November 2021 to 19 January 2022

(2022) Dirk Eggink et al.   Eurosurveillance

Risk of infection, hospitalisation, and death up to 9 months after a second dose of COVID-19 vaccine: a retrospective, total population cohort study in Sweden

(2022) Peter Nordström et al.   LANCET

Protection against SARS-CoV-2 after Covid-19 Vaccination and Previous Infection

(2022) Victoria Hall et al.   NEW ENGLAND JOURNAL OF MEDICINE

Immune correlates analysis of the mRNA-1273 COVID-19 vaccine efficacy clinical trial

(2022) Peter B. Gilbert et al.   SCIENCE

Vaccination before or after SARS-CoV-2 infection leads to robust humoral response and antibodies that effectively neutralize variants

(2022) Timothy A. Bates et al.   Science Immunology

Antibody evasion of SARS-CoV-2 Omicron BA.1, BA.1.1, BA.2, and BA.3 sub-lineages

(2022) Jingwen Ai et al.   Cell Host & Microbe

SARS-CoV-2 incidence, transmission, and reinfection in a rural and an urban setting: results of the PHIRST-C cohort study, South Africa, 2020–21

(2022) Cheryl Cohen et al.   LANCET INFECTIOUS DISEASES

Impact of previous exposure to SARS-CoV-2 and of S-Trimer (SCB-2019) COVID-19 vaccination on the risk of reinfection: a randomised, double-blinded, placebo-controlled, phase 2 and 3 trial

(2022) Igor Smolenov 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

Efficacy of a Fourth Dose of Covid-19 mRNA Vaccine against Omicron

(2022) Gili Regev-Yochay et al.   NEW ENGLAND JOURNAL OF MEDICINE

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

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

COVID-19 Mortality and Vaccine Coverage — Hong Kong Special Administrative Region, China, January 6, 2022–March 21, 2022

(2022) Dallas J. Smith et al.   MMWR-MORBIDITY AND MORTALITY WEEKLY REPORT

Effects of Previous Infection and Vaccination on Symptomatic Omicron Infections

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

Immunological characteristics govern the transition of COVID-19 to endemicity

(2021) Jennie S. Lavine et al.   SCIENCE

Emergence of a SARS-CoV-2 variant of concern with mutations in spike glycoprotein

(2021) Houriiyah Tegally et al.   NATURE

Neutralizing antibody levels are highly predictive of immune protection from symptomatic SARS-CoV-2 infection

(2021) David S. Khoury et al.   NATURE MEDICINE

Evidence for antibody as a protective correlate for COVID-19 vaccines

(2021) Kristen A. Earle et al.   VACCINE

Correlates of protection against symptomatic and asymptomatic SARS-CoV-2 infection

(2021) Shuo Feng et al.   NATURE MEDICINE

Efficacy of Natural Immunity against SARS-CoV-2 Reinfection with the Beta Variant

(2021) Hiam Chemaitelly et al.   NEW ENGLAND JOURNAL OF MEDICINE

Towards a population-based threshold of protection for COVID-19 vaccines

(2021) David Goldblatt et al.   VACCINE

Evaluation of a novel multiplexed assay for determining IgG levels and functional activity to SARS-CoV-2

(2020) Marina Johnson et al.   JOURNAL OF CLINICAL VIROLOGY

Investigating the early-life determinants of illness in Africa: the Drakenstein Child Health Study

(2014) H J Zar et al.   THORAX