SARS-CoV-2 seroprevalence and determinants for salivary seropositivity among pupils and school staff: a prospective cohort study

Abstract

Author's contributions: JM, ID, ED, and MR contributed to the conception and design of the study. JM prepared the draft of the protocol and JM, MC, IK, ID, ED, and MR reviewed and finalized the protocol. MC, IK, and ED organized and conducted biological samples collection and transport. ID did the analysis of the samples and interpretation of test results. MC, IK, and ED organized and conducted epidemiological data collection and performed project administration and coordination. JM and MR did data cleaning and analysis. JM, MR, and ED did interpretation of data and results. JM and MR analysed the complete data. MR

Wheezing Episodes in Children Before and After the Onset of the COVID-19 Pandemic in Brussels

“…and an important rise in SARS-CoV-2 infections compared to 2020. Indeed, SARS-CoV-2 seroprevalence in Belgian pupils rose steeply from 24% in June 2021 to 60% in December 2021 with more than half of these pupils infected during the fourth pandemic wave which was dominated by the delta variant [35]. SARS-CoV-2 has so far not been described as an important childhood wheeze trigger except in the report of Ruano et al [36] describing an increased use of reliever therapy in a group of asthmatic children with probable COVID-19.…”