Comparison of outcomes from COVID infection in pediatric and adult patients before and after the emergence of Omicron.
Lindsey WangNathan A BergerDavid C KaelberPamela B DavisNora D VolkowRong XuPublished in: medRxiv : the preprint server for health sciences (2022)
First time SARS-CoV-2 infections occurring at a time when the Omicron variant was rapidly spreading were associated with significantly less severe outcomes than first-time infections when the Delta variant predominated.