Covid-19 4th wave scare: 4 BA.4, 3 BA.5 Omicron subvariants confirmed in Pune
Fourth Covid-19 wave scare: Six out of seven patients have received both te doses of Covid-19 vaccines.
May 28, 2022, 19:00 PM ISTNo BA.4 variant spread in Tamil Nadu, first patient fully recovered: Health Secy
BA.4 Omicron variant was first discovered in Tamil Nadu a19-year-old college student from neighbouring Chengalpattu district, PTI reported.
May 23, 2022, 20:13 PM IST