While appearing on ABC’s “This Week,” host George Stephanopoulos noted that Johnson & Johnson’s vaccine has been reported to be 72 percent effective at preventing a coronavirus infections, lower than the 95 percent effectiveness reported by the Moderna and Pfizer vaccines.

“We’ve got to get away from that chain of thought, George, for the following reason. The only way you really know the difference between vaccines, is by comparing them head to head. We have three highly efficacious vaccines that are safe and efficacious. That’s the bottom line,” Fauci said.

“This is a good vaccine,” he added. “I think we need to pull away from this comparing and parsing numbers, until you compare them head to head. Just be really grateful that we have three really efficacious vaccines.”