NEW DELHI : Pharmaceutical companies are fast racing to bring a covid-19 vaccine, but safety continues to remain a top concern until the vaccines are rolled out and prove safe without adverse reactions.
During September and October this year, few covid-19 vaccines, which are in Phase III clinical trials, were put on hold for serious side reactions.
However, till date very little information about the nature of adverse reactions is available.According to public health experts, the vaccine manufacturers need to step-up their communication activities and be transparent to maintain credibility.Oxford-AstraZaneca was the first company in the world to start Phase II/III trials for a covid-19 vaccine.