India’s indigenous COVID-19 vaccine, Bharat Biotech’s Covaxin, has been found to be effective against SARS-CoV-2 variants, including the delta variant which was first detected in India, in a study by the Indian Council of Medical Research.

The investigation, pending peer review, also noted that the vaccine was three times as effective in developing antibodies as a prior COVID-19 infection. Furthermore, the vaccine was reported to create 2.7 times less neutralizing titre against the delta variant and three-fold less neutralizing titre against the beta variant of the coronavirus, which was first detected in South Africa. However, the vaccine was effective against both strains… (HT, June 9, 2021)