WATCH: Fauci backs vaccine mandates for domestic travel

Fauci said that "if we get the overwhelming proportion of the population vaccinated, we will get to herd immunity. If we do it in the next six months, it will happen in the next six months. If we do it in the next two months, it'll happen in the next two months."

When Fauci was asked if he would support vaccination mandates for travel, he said that he would. "I would support that if you want to get on a plane and travel with other people, that you should be vaccinated."

Many airlines, such as United and Delta, have already instituted vaccine mandates for their employees, and have stated that they are thinking of insisting on proof of vaccines in order for travelers to board their planes as well.

Fauci was asked about vaccine requirements for public schools, and likened the COVID vaccine to other vaccines children are obligated to get before attending school.

"I don't know what school you went to," he said, "but the school that I went to, you had to be vaccinated for measles, mumps, rubella, polio or otherwise you couldn't go to school. So it is not something new to mandate vaccine for school children."

Fauci said that "the solution we have at our hands is vaccines."

According to CNN, 51 percent of the population appears to support requirements for proof of vaccination in order to do things like show up at the workplace, to classes, or for large-scale events like sports matches or concerts, while nearly half of the nation does not.