KUCHING: Cases of highly infectious Covid-19 Omicron sub-variants have been detected in Sarawak, with the public urged to remain alert and get their booster shots.
Universiti Malaysia Sarawak's Institute of Health and Community Medicine (IHCM) director Prof Dr David Perera said the first incidences of the BA.2.12.1 and BA.5 sub-variants were detected from a case in Kuching and Sibu respectively in the last week of May.
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