Researchers from the University of Padua (Italy) and the Imperial College London tested more than 85 per cent of the 3,000 residents of Vo' in Italy, in February/March 2020 for infection with SARS-CoV-2
Interim results of the Oxford Covid-19 vaccine trials found that the vaccine protects against symptomatic disease in 70 per cent of cases with vaccine efficacy of 62 per cent for those given two full doses, and of 90 per cent in those given a half then a full dose.