A vaccine-busting Covid variant is a matter of ‘when, not if’, warns top WHO expert @davidnabarro with @nicholascecil https://t.co/riYINNa7SN— Joe Murphy (@JoeMurphyLondon) April 20, 2021
A vaccine-busting Covid variant is a matter of ‘when, not if’, warns top WHO expert @davidnabarro with @nicholascecil https://t.co/riYINNa7SN