Pfizer said on Wednesday that its final analysis from it its clinical trial shows its coronavirus vaccine is 95 per cent effective, has no serious side effects and protects older adults.The results from the final efficacy analysis of the vaccine study were released Wednesday.The announcement comes a week after Pfizer revealed promising preliminary results of its Phase 3 trials.
The company is now preparing to formally ask U.S. regulators to allow the emergency use of the vaccine.[ Sign up for our Health IQ newsletter for the latest coronavirus updates ]In the Phase 3 study involving more than 43,000 volunteers, half received the experimental vaccine and half got a placebo.