Since its first emergence in late 2019, severe acute respiratory syndrome coronavirus-2 has
claimed more than 6.5 million lives worldwide and continues to infect hundreds of thousands …

Background SARS-CoV-2 breakthrough infections (BI) after vaccine booster dose are a
relevant public health issue. Methods Multicentric longitudinal cohort study within the …

Background UK COVID-19 vaccination policy has evolved to offering COVID-19 booster
doses to individuals at increased risk of severe Illness from COVID-19. Building on our …

International Journal of Epidemiology, 2023, e46–e56 https://doi. org/10.1093/ije/dyac189
Advance Access Publication Date: 29 September 2022 Cohort Profile study of COVID-19 in …

Despite the development of vaccines against the severe acute respiratory syndrome
coronavirus 2 (SARS-CoV-2) virus, there is an urgent need for efficient drugs to treat infected …

Background The imposition of restrictions on social mixing early in the COVID-19 pandemic
was followed by a reduction in asthma exacerbations in multiple settings internationally …

Background The impact of the infecting SARS-CoV-2 variant of concern (VOC) and the
vaccination status was determined on the magnitude, breadth, and durability of the …

Vaccine development targeting SARS-CoV-2 in 2020 was of critical importance in reducing
COVID-19 severity and mortality. In the UK during the initial roll-out most individuals either …

Antibody studies analyze immune responses to SARS-CoV-2 vaccination and infection,
which is crucial for selecting vaccination strategies. In the KoCo-Impf study, conducted …

Objective Healthcare workers (HCWs) are at higher risk of SARS-CoV-2 infection than the
general population. This group is pivotal to healthcare system resilience during the COVID …