This article is 2 years old
Omicron subvariants BA.4, BA.5 may soon be dominant in Thailand
The fast-spreading Omicron subvariants BA.4 and BA.5 may soon be dominant in Thailand.
According to Thailand's Medical Science Department director-general Dr Supakit Sirilak, the Omicron variants accounted for 100 percent of new Covid-19 cases last week, and 50 percent of the Omicron variants comprise the BA.4 and BA.5 subvariants...
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