[Preprint] Pfizer vaccine effectiveness against Delta declines faster than AstraZeneca, both offering the same protection after 4 months.

Impact of Delta on viral burden and vaccine effectiveness against new SARS-CoV-2 infections in the UK – University of Oxford

Commentaries:

Vaccines Are Less Effective Against Delta—And Pfizer’s Protection Wanes Rapidly—But Are The Best Way To Protect Against Covid, Large Study Finds – Forbes

Expert reaction to preprint looking at the impact of the delta variant on vaccine effectiveness – Science Media Centre

Pfizer vaccine effectiveness declines faster than AstraZeneca – study – Evening Standard

Commentary on Twitter

New large UK study confirms attrition of @Pfizer vaccine effectiveness vs Delta infections over time https://t.co/K6YRyAQq4o "By roughly 4 1/2 months after the 2nd dose, Pfizer’s shot will probably be about on par with Astra’s at preventing infections with a high viral burden" pic.twitter.com/x1Nl2BkWfn

— Eric Topol (@EricTopol) August 19, 2021