COLUMBUS, Ohio—Two Miami University students who developed flu-like symptoms after returning from China have been isolated as health officials test them for coronavirus, according to the Ohio Department of Health.

The students, one of whom is from China, are not severely ill and have not been hospitalized, according to university spokeswoman Claire Wagner. They have been confined to their off-campus residences, she said.

Medical samples have been sent to the federal Centers for Disease Control, which should notify Ohio health officials by the end of the week whether they test positive for coronavirus, according to Ohio Department of Health spokeswoman Melanie Amato. A CDC spokesman referred comment to the state health department.

The two are the first suspected cases in Ohio of coronavirus, which has killed at least 106 people in China and sickened more than 4,500 people worldwide, according to the New York Times.

However, there is only a low health risk to the Miami University campus and the surrounding city of Oxford, according to a release from the Butler County General Health District.

U.S. health officials are monitoring 110 possible cases of coronavirus across 26 states, according to the federal Centers for Disease Control. As of Monday, five U.S. cases were diagnosed.

Coronavirus has been traced back to a market in the Chinese city of Wuhan, where the virus is believed to have jumped from animals to humans.