Serum vaccine will be the cheapest, the government is ready to give a dose for 250 rupees. News Serum vaccine will be the cheapest, the government is ready to give a dose for 250 rupees. News Analysis India 3 years ago The world’s largest vaccine producer Serum Institute of India (SII) is about to sign a corona vaccine-coveyshield supply contract with the central government. Accordingly,...Read More