There won’t be a live audience at the next Democratic primary debate due to coronavirus fears.

The Democratic National Committee’s decision to scrap the audience at Sunday’s debate in Arizona — the first head to head contest of the primary season — came at the request of the campaigns of former vice president Joe Biden and Vermont Sen. Bernie Sanders, according to a statement.

“DNC has been in regular communication with local health officials and the Mayor’s office, which advised that we could proceed as planned,” DNC Communications Director Xochitl Hinojosa said in a statement.

“Nevertheless, our number one priority has and will continue to be the safety of our staff, campaigns, Arizonans and all those involved in the debate. We will continue to remain in daily contact with all stakeholders through Sunday.”

CNN, which is hosting the debate with the Spanish-language Univision, said the decision was made “at the request of the campaigns and out of an abundance of caution.”

There also won’t be a press filing center or a spin room in Phoenix, CNN’s statement said.