Diseases, Conditions, Syndromes

Prevalence of COVID-19-related croup up during omicron

The proportion of children with COVID-19-related croup was increased during the period of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) omicron predominance compared with alpha or other variant- and delta-predominant ...


'Natural immunity' from omicron is weak and limited, study finds

In unvaccinated people, infection with the omicron variant of SARS-CoV-2 provides little long-term immunity against other variants, according to a new study by researchers at Gladstone Institutes and UC San Francisco (UCSF), ...

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