In a recent JAMA Network Open study, researchers estimate the severity of infection with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron BA.2 subvariant compared to that ...
(NEXSTAR) – On Tuesday, the Centers for Disease Control and Prevention added two new subvariants to its online tracker: BA.4 and BA.5. Both are subvariants of the omicron variant of COVID-19, which ...
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