How effective are COVAXIN and Covishield vaccines? | Detailed report

Drug Controller General of India (DCGI) V.G. Somani on Sunday approved Serum Institute of India's 'Covishield' vaccine and Bharat Biotech's 'Covaxin' for emergency use, paving way for its roll-out and administration to millions.

Covishield and Covaxin have to be administered in two doses and can be stored at 2-8 degrees Celsius. But how effective will these vaccines be? Take a look at the report