'Great day for humanity': Pfizer says Covid-19 vaccine over 90% effective

Pfizer Inc's experimental Covid-19 vaccine was more than 90% effective based on initial trial results, the company said on Monday, a major victory in the fight against a pandemic that has killed over a million people and battered the world's economy.

Experts welcomed the first successful interim data from a large-scale clinical test as a watershed moment that showed vaccines could halt the pandemic though mass roll-outs of the shot, which needs regulatory approval, won't happen this year. Pfizer and its German partner.....

This article is no longer available in our repository.

There could be multiple reasons for this.