http://www.newsweek.com/new-vaccine-delta-covid-variant-needed-more-transmissible-study-1626667

Governments should consider offering another COVID vaccine specifically tailored to the Delta variant, according to a U.K. government advisor and Delta researcher.

The guidance comes after a new study indicated that the Delta variant was eight times less sensitive to the antibodies that vaccines provide to people compared to an earlier version of COVID from April 2020, in a lab environment.