Pharmaceuticals and Drug Trials
Studies have shown the Pfizer/BioNTech Covid jab to be 95% effective and works in all age groups. No safety concerns arose from clinical trials.
The high success rate from one part of the study has come under scrutiny this week. Here's what we know.
But any potential vaccine would have to be released 'very cautiously', the Imperial College London professor warned.
The president, who is not a doctor, recommended a potentially dangerous drug combo to his 74 million Twitter followers. "What do we have to lose?" he asked.