Pfizer, J&J react to COVID-19 breakthrough infections
https://healthell.blogspot.com/2021/08/pfizer-j-react-to-covid-19-breakthrough.html
Pfizer, J&J react to COVID-19 breakthrough infections
Pfizer and J&J remain confident in their respective COVID-19 vaccines’ ability to prevent severe illness, hospitalization and death amid the spread of the highly transmissible delta variant, the companies told Fox News.
