Comparing COVID-19 vaccines for their characteristics, efficacy and effectiveness against SARS-CoV-2 and variants of concern: a narrative review

T Fiolet, Y Kherabi, CJ MacDonald, J Ghosn… - Clinical Microbiology …, 2022 - Elsevier
Background Vaccines are critical cost-effective tools to control the coronavirus disease 2019
(COVID-19) pandemic. However, the emergence of variants of the severe acute respiratory …

SARS-CoV-2 breakthrough infections in vaccinated individuals: measurement, causes and impact

M Lipsitch, F Krammer, G Regev-Yochay… - Nature Reviews …, 2022 - nature.com
Breakthrough infections with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-
2) in fully vaccinated individuals are receiving intense scrutiny because of their importance …

Omicron SARS-CoV-2 variant: a new chapter in the COVID-19 pandemic

SSA Karim, QA Karim - The lancet, 2021 - thelancet.com
SARS-CoV-2 variant of concern (VoC), omicron, 2 was reported. Omicron emerged in a
COVID-19-weary world in which anger and frustration with the pandemic are rife amid …

Association between 3 doses of mRNA COVID-19 vaccine and symptomatic infection caused by the SARS-CoV-2 Omicron and Delta variants

EK Accorsi, A Britton, KE Fleming-Dutra, ZR Smith… - Jama, 2022 - jamanetwork.com
Importance Assessing COVID-19 vaccine performance against the rapidly spreading SARS-
CoV-2 Omicron variant is critical to inform public health guidance. Objective To estimate the …

mRNA vaccines induce durable immune memory to SARS-CoV-2 and variants of concern

RR Goel, MM Painter, SA Apostolidis, D Mathew… - Science, 2021 - science.org
INTRODUCTION Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) mRNA
vaccines are highly effective at preventing infection and especially severe disease …

[HTML][HTML] Safety and immunogenicity of seven COVID-19 vaccines as a third dose (booster) following two doses of ChAdOx1 nCov-19 or BNT162b2 in the UK (COV …

APS Munro, L Janani, V Cornelius, PK Aley… - The Lancet, 2021 - thelancet.com
Background Few data exist on the comparative safety and immunogenicity of different
COVID-19 vaccines given as a third (booster) dose. To generate data to optimise selection …

Protection against SARS-CoV-2 after Covid-19 vaccination and previous infection

V Hall, S Foulkes, F Insalata, P Kirwan… - … England Journal of …, 2022 - Mass Medical Soc
Background The duration and effectiveness of immunity from infection with and vaccination
against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are relevant to …

Protection and waning of natural and hybrid immunity to SARS-CoV-2

Y Goldberg, M Mandel, YM Bar-On… - … England Journal of …, 2022 - Mass Medical Soc
Background Infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
provides natural immunity against reinfection. Recent studies have shown waning of the …

[HTML][HTML] Waning 2-dose and 3-dose effectiveness of mRNA vaccines against COVID-19–associated emergency department and urgent care encounters and …

JM Ferdinands - MMWR. Morbidity and mortality weekly report, 2022 - cdc.gov
Vaccine effectiveness (VE) against COVID-19–associated emergency department/urgent
care (ED/UC) visits and hospitalizations was higher after the third dose than after the second …

Effect of mRNA vaccine boosters against SARS-CoV-2 Omicron infection in Qatar

LJ Abu-Raddad, H Chemaitelly… - … England Journal of …, 2022 - Mass Medical Soc
Background Waning of vaccine protection against coronavirus disease 2019 (Covid-19) and
the emergence of the omicron (or B. 1.1. 529) variant of the severe acute respiratory …