The outbreak of the B. 1.1. 529 lineage of severe acute respiratory syndrome coronavirus 2
(SARS-CoV-2)(Omicron) has caused an unprecedented number of Coronavirus Disease …

Although severe COVID-19 in children is rare, they may develop multisystem inflammatory
syndrome, long-COVID and downstream effects of COVID-19, including social isolation and …

Background A vaccine against SARS-CoV-2 for children and adolescents will play an
important role in curbing the COVID-19 pandemic. Here we aimed to assess the safety …

Multiple vaccines against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
have been evaluated in clinical trials. However, trials addressing the immune response in …

Background Data on the protection conferred by COVID-19 vaccination and previous SARS-
CoV-2 infection against omicron (B. 1.1. 529) infection in young children are scarce. We …

Background Although paediatric clinical presentations of COVID-19 are usually less severe
than in adults, serious illness and death have occurred. Many countries started the …

Background The ongoing COVID-19 pandemic has had a significant impact worldwide, with
an incommensurable social and economic burden. The rapid development of safe and …

Importance Bivalent mRNA COVID-19 vaccines were recommended in the US for children
and adolescents aged 12 years or older on September 1, 2022, and for children aged 5 to …

Children could benefit both directly and indirectly from vaccination. In light of the safety and
immunogenicity results from recent adult COVID-19 vaccine clinical trials, children should …

OBJECTIVES Vaccination reduces the risk of acute coronavirus disease 2019 (COVID-19) in
children, but it is less clear whether it protects against long COVID. We estimated vaccine …