WASHINGTON (AP) — President Barack Obama will travel next week to Atlanta to address the Ebola crisis during a visit to the Centers for Disease Control and Prevention, the White House said Friday.

During his visit on Tuesday, Obama will be briefed about the outbreak and discuss the U.S. response with officials, White House spokesman Josh Earnest said. Obama will also thank the doctors, scientists and health care workers responding to the crisis.

Four Americans have been or are being treated for Ebola in the U.S. after evacuation from Africa. The Ebola outbreak is the worst in history and has been blamed for more than 2,200 deaths in West Africa. So far, the death rate is about 50 percent, with doctors and nurses at a high risk of contracting the virus.

The U.S. has spent more than $100 million responding to the outbreak and has offered to operate treatment centers for patients.

While at the CDC, Obama also will be briefed about cases of respiratory illness being reported in the Midwest, the White House said. Public health officials are monitoring a high number of reports of illness associated with human enterovirus 68 in Iowa, Kansas, Ohio and elsewhere.

After leaving Atlanta, Obama will travel to Florida to visit the headquarters of U.S. Central Command in Tampa, where he'll meet with military officials about the U.S. counterterrorism campaign against the Islamic State group. Central Command overseas U.S. military efforts in the Middle East.