Covid, ‘old’ and updated vaccines: how much we are protected from the new sub-variants

The announcement of the arrival by the end of the summer of Moderna’s anti-Covid vaccine updated with Omicron variants comes precisely the different sub-variants are making the virus raise its head a bit. All the more so since from 15 June the obligation to wear masks also ceases and Italians are already looking at the long-awaited summer holidays, reading with fear the data that see a new worrying increase in cases in various European countries and a slowdown in the descent of new infections. in Italy.