YANGON (XINHUA) – Myanmar’s Ministry of Health has confirmed the first six cases of Omicron BA.4 and BA.5 subvariants of the COVID-19 pandemic. According to the ministry’s release on Monday, SARS-CoV-2 variant Omicron BA.4 was found in one sample and BA.5 in five samples of returnees from foreign countries after a total of 16 laboratory
