Understanding the impact of age on vaccinations is essential for the design and delivery of
vaccines against SARS-CoV-2. Here, we present findings from a comprehensive analysis of …

The zoonotic SARS-CoV-2 virus was present before the onset of the pandemic. It undergoes
evolution, adaptation, and selection to develop variants that gain high transmission rates …

Abstract The SARS‐CoV‐2 Delta (B. 1.617. 2) variant is capable of infecting vaccinated
persons. An open question remains as to whether deficiencies in specific vaccine‐elicited …

The emergence of new SARS-CoV-2 variants, such as the more transmissible Delta and
Omicron variants, has raised concerns on efficacy of the COVID-19 vaccines. Here, we …

Solid organ transplant (SOT) recipients receive immunosuppressive drugs (ISDs) and are
susceptible to develo** severe COVID-19. Here, we analyze the Spike-specific T-cell …

Long‐term complications from coronavirus disease 2019 (COVID‐19) are concerning, as
survivors can develop subclinical multiorgan dysfunction. It is unknown if such complications …

Objective Despite the high vaccine efficacy of mRNA COVID‐19 vaccines, there are
individuals who developed excessive reactogenic and/or allergic responses after the first …

Background The emergence of rapidly evolving severe acute respiratory syndrome
coronavirus 2 (SARS-CoV-2) variants, coupled with waning vaccine-induced immunity, has …

Identification of the risk factors and the high-risk groups which are most vulnerable is critical
in COVID-19 disease management at a population level. Evaluating the efficacy of …

Summary Background Understanding how SARS-CoV-2 breakthrough infections impacts
the breadth of immune responses against existing and pre-emergent SARS-CoV-2 strains is …