Preventing average of 70% Covid-19 cases, vaccine developed by University of Oxford and AstraZeneca Plc

(G.N.S) Dt. 23 England Covid-19 vaccine developed by the University of Oxford and AstraZeneca Plc prevented a majority of people from getting the disease in a large trial, another promising development in the quest to end the pandemic. The vaccine stopped an average of 70% of participants from falling ill,