To face the COVID-19 outbreak, a wide range of non-pharmaceutical interventions (NPIs)
aimed at limiting the spread of the virus in communities, such as mask-wearing, hand …

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 …

Understanding the development of humoral immune responses of children and adolescents
to SARS-CoV-2 is essential for designing effective public health measures. Here we …

Background Information on variant-specific vaccine protection and the effect of previous
infection variant is scarce in children. We aimed to ascertain the level of protection conferred …

Background Protection against severe acute respiratory syndrome coronavirus 2 (SARS-
CoV-2) reinfection relies on immunity generated after primary infection. However, humoral …

Importance Immune-mediated inflammatory diseases (IMIDs) and COVID-19 are
independently associated with venous thromboembolisms (VTEs). Objective To determine if …

Summary Background Children can develop Long Covid, however long term outcomes and
their predictors are poorly described in these patients. The primary aim is to describe …

Data on cross‐neutralization of the SARS‐CoV‐2 omicron variant more than 1 year after
SARS‐CoV‐2 infection are urgently needed, especially in children, to predict the likelihood …

Purpose This study aimed to investigate the antibodies against SARS-CoV-2 in children
hospitalized due to COVID-19 during the era of pre-Omicron and Omicron variants. Methods …

Severe acute undernutrition (SAU) is still a crucial global health issue in the 0–59 months
population, increasing the risk of mortality as well as of long-term consequences. In Sudan …