The Pfizer or AstraZeneca vaccines for COVID-19 are nearly as effective against the Delta variant as they are against the previously dominant Alpha variant, when the person receives two doses of the vaccine, a new study published on Wednesday suggests. The highly contagious Delta variant, first identified in India in late 2020, is now the
https://www.theepochtimes.com/2-doses-of-pfizer-or-astrazeneca-vaccine-effective-against-delta-covid-19-variant-study_3913299.html

Leave a Reply