BANGKOK, July 11 (TNA) – There are more cases of BA.4 and BA.5 sub-variants of COVID-19, most of them are in Bangkok and they will spread to other provinces, according to the Department of Medical Sciences.

Dr Supakit Sirilak, director-general of the department, said BA.4 and BA.5 infections were confirmed with three quarters of infected arrivals. Among local cases, the two sub-variants were found with 72% of cases in Bangkok and 34.7% of cases in other provinces.

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TNA