Volume 30, Number 6—June 2024
Research
SARS-CoV-2 Disease Severity and Cycle Threshold Values in Children Infected during Pre-Delta, Delta, and Omicron Periods, Colorado, USA, 2021–2022
Figure 1

Figure 1. Variant counts of sequencing-confirmed lineages by week of sample collection in study of SARS-CoV-2 disease severity in children during pre-Delta, Delta, and Omicron periods, Colorado, USA, January 2021–January 2022. Gray boxes indicate time periods of potentially mixed lineage that were excluded from time period analyses.
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