Close to 200 Covid-19 cases in Singapore with ‘more infectious’ Omicron sub-variant BA.2: What is this sub-variant?

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https://www.todayonline.com/singapore/close-200-covid-19-cases-singapore-more-infectious-omicron-sub-variant-moh-1802396

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https://www.channelnewsasia.com/singapore/covid-19-omicron-ba-2-sub-variant-found-moh-2466301?utm_source=dlvr.it&utm_medium=twitter

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