WATCH: CNN health contributor says point blank that it should be ‘hard for Americans to remain unvaccinated’

"I think this really depends on what it is that we do at this point," responds Dr. Wen to an interviewer's question.

"So now we have this Delta variant that is much more contagious. Because it's more contagious, it's going to be even harder for us to reach herd immunity. We're going to have to vaccinate an even higher proportion of people to get there."

"What happens, then, if we end up having another variant developing that's even more contagious, that could cause more disease, that could evade the protection of our immune system?"

(The obvious should, of course, be noted, that there also exists the possibility, however remote, of a strain of coronavirus that could potentially evade vaccines as well, and that our immune systems are capable of adaptation.)

"And so, how quickly we get this under control, and which way we go, depends on what we do now when it comes to vaccination, to overcoming disinformation. And what we really need to do at this point is to make vaccination the easy choice."

"It needs to be hard for people to remain unvaccinated. Right now it's kind of the opposite. It's fine, it's easy if you're unvaccinated; you can do everything you want to do anyway."

"But at some point these mandates by workplaces, by schools, I think it will be important to say 'hey, you can opt out, but if you wanna opt out, you gotta sign these forms, you have to get twice-weekly testing."

"Basically, we need to make getting vaccinated the easy choice. That is what it's going to take for us to actually end the pandemic."