Background Numerous studies demonstrate associations between serum concentrations of
25-hydroxyvitamin D (25 [OH] D) and a variety of common disorders, including …

Children and adolescents exhibit a broad range of clinical outcomes from SARS-CoV-2
infection, with the majority having minimal to mild symptoms. Additionally, some succumb to …

Background The COVID-19 pandemic is reported to have affected the epidemiology of
respiratory syncytial virus (RSV), which could have important implications for RSV …

The clinical course and outcome of COVID-19 are highly variable, ranging from
asymptomatic infections to severe disease and death. Understanding the risk factors of …

Background Infants and young children born prematurely are at high risk of severe acute
lower respiratory infection (ALRI) caused by respiratory syncytial virus (RSV). In this study …

Objective To provide estimates of the relative rate of COVID-19 death in people< 65 years
old versus older individuals in the general population, the absolute risk of COVID-19 death …

Background Respiratory syncytial virus (RSV) is the most common cause of acute lower
respiratory infection in young children. We previously estimated that in 2015, 33· 1 million …

The Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) has caused the
Coronavirus Disease 2019 (COVID-19) worldwide pandemic in 2020. In response, most …

The non-pharmaceutical interventions implemented to slow the spread of SARS-CoV-2 have
had consequences on the transmission of other respiratory viruses, most notably paediatric …

Background Human metapneumovirus is a common virus associated with acute lower
respiratory infections (ALRIs) in children. No global burden estimates are available for ALRIs …