A large body of evidence generated in the last two and a half years addresses the roles of T
cells in SARS-CoV-2 infection and following vaccination. Infection or vaccination induces …

Introduction COVID-19 vaccines have been highly effective in reducing morbidity and
mortality during the pandemic. However, the emergence of the Omicron variant and …

Large-scale vaccination campaigns have prevented countless hospitalizations and deaths
due to COVID-19. However, the emergence of SARS-CoV-2 variants that escape from …

Large-scale vaccination campaigns have prevented countless SARS-CoV-2 infections,
hospitalizations and deaths. However, the emergence of variants that escape from immunity …

Heterologous prime/boost vaccination with a vector-based approach (ChAdOx-1nCov-19,
ChAd) followed by an mRNA vaccine (eg BNT162b2, BNT) has been reported to be superior …

Prime-boost regimens for COVID-19 vaccines elicit poor antibody responses against
Omicron-based variants and employ frequent boosters to maintain antibody levels. We …

Introduction: Coronavirus disease 2019 (COVID-19), caused by SARS-CoV-2, has had a
disastrous effect worldwide during the previous three years due to widespread infections …

Evidence about the long‐term persistence of the booster‐mediated immunity against
Omicron is mandatory for pandemic management and deployment of vaccination strategies …

The SARS-CoV-2 pandemic has, as of July 2022, infected more than 550 million people and
caused over 6 million deaths across the world. COVID-19 vaccines were quickly developed …

As concerns related to the COVID-19 pandemic continue, it is critical to understand the
impact of vaccination type on neutralizing antibody response durability as well as to identify …