Purdue University is strongly encouraging their students to get a coronavirus vaccine, but not requiring them to do so for the upcoming fall semester.

“The vaccines can no longer be called experimental. They’ve been administered to hundreds of millions of people and they work wondrously. They protect the person vaccinated and they protect others,” said Purdue President Mitch Daniels in a video he posted to YouTube Tuesday.

Daniels said those who decide not to get vaccinated will be tested regularly for the virus.

“The higher the percentage of us all who choose vaccination, the more open campus can be and there may be activities we can make available to those vaccinated, but not those who decline,” said Daniels.

He hopes to be able scale back pandemic-related restrictions as time goes on.

“We’re eager to make changes that move us back towards normal. Success in year one does not guarantee anything about year two. We’ll continue to make all close calls on the side of caution and safety,” said Daniels.

Daniels said everything is subject to change “if the facts do.”

Purdue students are required to live by what’s called the “Purdue Pledge”, which requires students to take responsibility for their “own health and the protection of others” and “help keep the Purdue community safe from the spread of COVID-19 and other infections by adhering to university instructions.”