The COVID Omicron sub-variant BA.2, informally dubbed the "Stealth Omicron" variant, is able to reinfect people who have already had Omicron, a new study suggests. BA.2 has been under close ...
Majority of patients infected by Omicron’s sub-variant — BA.2 and its offspring BA.2.38 — did not require hospitalisation, and illnesses caused by them were mild and self-limiting, a clinical study ...
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