One day after the FDA granted full regulatory approval for Pfizer’s COVID-19 vaccine, Pfizer CEO Albert Bourla said that, at some point in the future, a strain of COVID that is resistant to vaccines is likely to emerge.
On the same day, the CDC also reported that immunity to COVID-19 is waning in fully vaccinated Americans as the more infectious Delta virus variants continue to spread across the United States.
So is it possible for humans to beat the pandemic? How do we protect ourselves from viruses?
