The Director of the World Health Organisation, WHO, Dr Tedros Adhanom Ghebreyesus, has hailed Pfizer and BioNTech’s announcement that their vaccine has in trials proved 90-percent effective in preventing COVID-19 infections.
The two Pharmaceutical Companies said the vaccine they have jointly developed had, during Phase 3 trials, provided protection to nearly all patients seven days after the second of two vaccine doses.
Also in his tweet, the WHO Director said it is “encouraging”; adding that the world is experiencing unprecedented scientific innovation and collaboration to end the pandemic
He said: “We welcome the encouraging vaccine news from @pfizer & @BioNTech_Group & salute all scientists & partners around who are developing new safe, efficacious tools to beat #COVID19.”
As of mid-October, the WHO has identified 42 “candidate vaccines” at the stage of clinical trials, up from 11 in mid-June; ten of them were at the most advanced phase 3 stage, in which a vaccine’s effectiveness is tested on a large scale, generally tens of thousands of people across several continents.
WHO Chief Scientist, Soumya Swaminathan, said in a tweet on Monday, November 9, 2020, that the news from Pfizer and BioNTech should “encourage all developers of #COVID19 vaccines to continue with clinical trials”; adding that: “The world needs several safe, effective & affordable vaccines to end this pandemic”.