In India the first dose of the Covid vaccine - rolled out from January 16 last year amid concerns over delays in vaccination - was "essentially a booster", Dr Jayaprakash Muliyil of the Indian Council for Medical Research (ICMR), told NDTV.
Speaking with Karan Thapar, the president of the Public Health Foundation of India speaks further on how India can most efficiently utilise its booster doses and the way forward for the nation in terms of vaccine policy, in light of the new omicron variant.
A Covid booster dose developed by China s Sinopharm has shown to generate weaker immune responses against the new highly transmissible Omicron variant, known to evade vaccine efficacy.