Characteristics and Outcomes of Hospitalized Patients in South Africa During the COVID-19 Omicron Wave Compared With Previous Waves

Caroline Maslo, MD, PhD1Richard Friedland, MD, BVSc1Mande Toubkin, RN, RM, Rpaeds1et al

JAMA. Published online December 30, 2021. doi:10.1001/jama.2021.24868


Further research is needed to determine if the differences between waves are affected by preexisting acquired or natural immunity (44.3% of the adult South African population was vaccinated as of December 20215 and >50% of the population has had previous exposure to SARS-CoV-26) or if Omicron may be less pathogenic than previous variants.

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