It is a traditional vaccine from Gaithersburg, Maryland, injecting the harmless antigen spike and has the best rates of efficacy out there, least sides and has already funded millions of doses manufactured in India. It absolutely crushed the 15,000 persons trials in U.K and South Africa, as well as in the U.S., and is very effective against the variants. It should have been authorized in the U.S. in Spring, but for some reason they wanted the mRna vaccines from Moderna and Biontech (funded by Pfizer) to get out there first. They even let Moderna skip animal testing giving it a 45 day head-start? I am personally waiting for this one... God bless in Jesus' Name