India to test efficacy of Covid-19 vaccines against SA, Brazil strains

There are not enough number of cases with the South African and Brazilian strains in the country to check the efficacy

After the Brazilian and South African strains of SARS-CoV-2 (coronavirus) were reported in India, domestic vaccine makers are gearing up to test the efficacy of their respective shots against these two variants in a laboratory setting.
 
Pankaj Patel, chairman of Cadila Healthcare — which has a vaccine candidate ZyCoV-D in phase 3 clinical trials in India and another measles vector-based vaccine at the cusp of clinical trials — said it was not possible to test the efficacy of the vaccine candidates against the mutant strains in clinical trials as the disease was not endemic in India.
 
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