Moden Vacations in Pfizer are very effective against COVID in real world conditions: CDC – El Financiero
Fact check: The UK government has said it will review the effectiveness and ethics of vaccine passports
Serrana, Brazil, will vaccinate all adults against Covid-19 to study the effectiveness of infection rate
‘Bristol Covid variant’ that could reduce the effectiveness of the vaccine is first discovered in the US
‘Bristol Covid variant’ that could reduce the effectiveness of the vaccine is first discovered in the US