Gottlieb warns Delta variant will be "most serious virus" unvaccinated get in their lifetime

Washington — Dr. Scott Gottlieb, former head of the Food and Drug Administration, warned Sunday that for Americans who are unvaccinated and become infected with the Delta variant, the virus will be the "most serious" they get in their lifetime.

"This virus is so contagious, this variant is so contagious that it's going to infect the majority — that most people will either get vaccinated or have been previously infected or they will get this Delta variant," Gottlieb said in an interview on "Face the Nation." "And for most people who get this Delta variant, it's going to be the most serious virus that they get in their lifetime in terms of the risk of putting them in the hospital."