This research paper shows the vaccines are highly effective against the delta variant: "Conclusions: After 2 doses of either vaccine there were only modest diff

This research paper shows the vaccines are highly effective against the delta variant: "Conclusions: After 2 doses of either vaccine there were only modest differences in vaccine effectiveness with the B.1.617.2 variant." The efficacy drop was about 5-6%. https://www.medrxiv.org/content/10.1101/2021.05.22.21257658v1.full https://www.medrxiv.org/content/10.1101/2021.05.22.21257658v...