The Lancet, the COVID-19 vaccine produced a dual immune response in people aged 18 to 55."As far as Serum Institute is concerned, we will be ready with 60-70 million dosages of vaccines by December 2020, but that will come in the market in 2021 after the clearance of licensing.
Thereafter, we will produce more and more dosages by the permission of the government," added Dr Jadav.The Serum Institute of India said in August it would price the vaccine at $3 per dose for India and other emerging economies.