H Hasan New member 12 Nis 2022 #1 WHO monitors two new Omicron Covid sub-variants BA.4, BA.5: All you need to know UKHSA said last week BA.4 had been found in South Africa, Denmark, Botswana, Scotland and England from 10 January to 30 March
WHO monitors two new Omicron Covid sub-variants BA.4, BA.5: All you need to know UKHSA said last week BA.4 had been found in South Africa, Denmark, Botswana, Scotland and England from 10 January to 30 March
