En placeboeffekt på 95% är också en effekt att räkna med...

rt.com
Pfizer & BioNTech’s Covid vaccine 95% effective, will seek emergency-use authorization ‘within days’
Pfizer and BioNTech have announced that their coronavirus vaccine is 95 percent effective in preventing infections, with no serious safety concerns, as the combined companies plan to seek approval from regulators “within days.”