Abstract Coronavirus Disease 2019 (COVID-19) has been the most severe public health
challenge in this century. Two years after its emergence, the rapid development and …

Background: To date, coronavirus disease 2019 (COVID-19) becomes increasingly fierce
due to the emergence of variants. Rapid herd immunity through vaccination is needed to …

Objective To estimate associations between covid-19 vaccination and long covid symptoms
in adults with SARS-CoV-2 infection before vaccination. Design Observational cohort study …

Background The ZF2001 vaccine, which contains a dimeric form of the receptor-binding
domain of severe acute respiratory syndrome coronavirus 2 and aluminum hydroxide as an …

Background Vaccine effectiveness against COVID-19 beyond 6 months remains
incompletely understood. We aimed to investigate the effectiveness of COVID-19 …

Background NVX-CoV2373 is an adjuvanted, recombinant spike protein nanoparticle
vaccine that was shown to have clinical efficacy for the prevention of coronavirus disease …

Background Real-world evidence supporting vaccination against COVID-19 in individuals
who have recovered from a previous SARS-CoV-2 infection is sparse. We aimed to …

Patients with cancer have a higher risk of severe coronavirus disease (COVID-19) and
associated mortality than the general population. Owing to this increased risk, patients with …

Background The efficacy of SARS-CoV-2 vaccines in preventing severe COVID-19 illness
and death is uncertain due to the rarity of data in individual trials. How well the antibody …

The novel coronavirus disease (COVID-19) pandemic remains a global public health crisis,
presenting a broad range of challenges. To help address some of the main problems, the …