Abstract

Recently, Whitaker et al. reported changes in SARS-CoV-2 seroprevalence in adults after introduction of a vaccination programme. Here we describe the impact of the delta wave and initiation of vaccination on seroprevalence in children.1 Sero-epidemiological surveys are important to monitor temporal and geographical distribution of SARS-CoV-2 and provide information on asymptomatic infections. Age-stratified surveys enable monitoring of prevalence estimates in different age groups and their contribution to transmission.

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