The health adviser to the Commission on Presidential Debates said Friday that they believe there was “low risk of exposure” to COVID-19 for guests at Tuesday’s debate, after President Trump and first lady Melania Trump tested positive for the novel coronavirus.

The Cleveland Clinic, which serves as the health advisor to the CPD and was the host site of the first presidential debate between Trump and former Vice President Joe Biden on Tuesday in Cleveland, Ohio, said they had “several requirements to maintain a safe environment” during the first showdown.

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The clinic, in a statement Friday, said the requirements aligned with CDC guidelines “including temperature checks, hand sanitizing, social distancing and masking.”

“Most importantly, everyone permitted inside the debate hall tested negative for COVID-19 prior to entry,” the clinic said. “Individuals traveling with both candidates, including the candidates themselves, had been tested and tested negative by their respective campaigns.”

“Based on what we know about the virus and the safety measures we had in place, we believe there is low risk of exposure to our guests,” the clinic said, adding, “Out of an abundance of caution we are reaching out to our guests to address any questions and concerns, as well as offering testing."

“We will continue to monitor the information being released by the White House,” it said.

The Cleveland Clinic, later, noted that they are following up with guests to address their questions and concerns, but mained that they do not think it is necessary to test everyone again, given the safety measures in place.

When asked by Fox News if the campaigns provided the Cleveland Clinic any proof that campaign staff and candidates were tested and tested negative, they declined to comment.

The statement came after Trump and the first lady tested positive for the virus early Friday. The White House, on Friday, said both the president and first lady are experiencing “mild symptoms,” but remain in “good spirits.”

The Biden campaign released a statement saying both Biden and his wife have tested negative for coronavirus.

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The next presidential debate is slated to take place on Oct. 15 in Miami, Fla. The final debate between Biden and Trump is set for Oct. 22 in Nashville, Tenn.

The commission also is sponsoring a vice presidential debate, which is set to be held on Oct. 7 in Salt Lake City, Utah.

Both Vice President Mike Pence and Biden running mate Sen. Kamala Harris, D-Calif., have tested negative for COVID-19.

The CPD did not immediately respond to Fox News’ request for comment.