16-05-2022, 06:36 PM
The BA.4 and BA.5 variants appear to confer greater "immune escape properties" and higher transmissibility compared to the BA.1 and BA.2 variants causing the Omicron wave in Singapore earlier this year, said MOH.
16-05-2022, 06:36 PM
16-05-2022, 06:45 PM
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