While the manufacturer of Covaxin got itself in a jam with Brazil following an inspection of its Hyderabad facility, AstraZeneca’s vaccine was put on hold in several nations after reports of blood clots. How safe are these vaccines?
Pharmaceutical firms and labs across the world are in a frantic race to find a vaccine to counter Covid-19. For all the urgency, the big question is will the rich countries get it first and leave the rest at the back of the queue?