How the omicron subvariant BA.5 became a master of disguise – and what it means for the current COVID-19 surge

The omicron subvariant known as BA.5 was first detected in South Africa in February 2022 and spread rapidly throughout the world. As of the second week of July 2022, BA.5 constituted nearly 80% of COVID-19 variants in the United States.[#item_full_content]

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