Many scientists don’t expect a coronavirus vaccine to be nearly as protective as the measles shot. If the best COVID-19 vaccine is only 50% effective, "that’s still to me a great vaccine,” said Dr. Drew Weissman of the University of Pennsylvania. About 15 experimental COVID-19 vaccines are in various stages of human studies worldwide. “Nothing is going to be easy.”CLICK HERE FOR COMPLETE CORONAVIRUS COVERAGEThe Oxford shot, with a 10,000-person study underway in England, already encountered that hurdle. EXPECT IMPERFECT PROTECTIONAnimal research suggests COVID-19 vaccines could prevent serious disease but may not completely block infection.

Source: Fox News June 29, 2020 05:03 UTC