
Thailand has 181 recorded cases of Covid-19's latest worrisome subvariants, BA.4 and BA.5, which are similar to the Delta variant and therefore potentially harmful to a patient's lungs, according to the Department of Medical Sciences.
Director-general Supakit Sirilak said on Friday that there had been 181 cases of BA.4 and BA.5 subvariants of the Omicron variant and they posed risks of infection clusters.