Covid-19 Vaccine: WHO Chief Hails Pfizer News As ‘Encouraging’
NOVEMBER 9, 2020 The Director-General of the World Health Organization has hailed as “encouraging” Pfizer and BioNTech’s announcement on Monday 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 … Read more