Impact of SARS-CoV-2 variants on inpatient clinical outcome.
Matthew L RobinsonC Paul MorrisJosh BetzYifan ZhangRobert BollingerNatalie WangDavid R ThiemannAmary FallRaghda E EldesoukiJulie M NortonDavid C GastonMichael FormanChun Huai LuoScott L ZegerAmita GuptaBrian T GaribaldiHeba H MostafaPublished in: medRxiv : the preprint server for health sciences (2022)
Although the risk of severe disease or death for unvaccinated patients with Omicron was lower than Delta, it was similar to ancestral lineages. Severe outcomes were less common in vaccinated patients, but there was no difference between Delta and Omicron infections.