Donald Trump wants Americans infected with ebola to be kept out of their own country.

In a series of tweets posted over the weekend, Trump said doctors who treat ebola patients "are great," but shouldn't be allowed to seek treatment back home if they get sick.

The U.S. cannot allow EBOLA infected people back. People that go to far away places to help out are great-but must suffer the consequences! — Donald J. Trump (@realDonaldTrump) August 2, 2014

But The Donald didn't stop there. He said the U.S. must "stop all flights from EBOLA infected countries or the plague will start and spread inside our 'borders.'"

The fact that we are taking the Ebola patients, while others from the area are fleeing to the United States, is absolutely CRAZY-Stupid pols — Donald J. Trump (@realDonaldTrump) August 2, 2014

Dr. Kent Brantly, the American doctor stricken with ebola in Africa, returned to the U.S. on Saturday, and is said to be improving as he receives treatment at Atlanta's Emory University Hospital.

His assistant, missionary Nancy Writebol, also contracted the disease while working with patients suffering from ebola. She's expected to be flown to the U.S. later this week.

Both were in Liberia, working for Samaritan's Purse, an evangelical Christian relief organization.

Earlier, the director of the U.S. Centers for Disease Control and Prevention appealed for calm in the wake of fears about Americans sickened by ebola coming to the states.

"I hope that our understandable fear of the unfamiliar does not trump our compassion when ill Americans return to the U.S. for care," said Dr. Tom Frieden, according to The Associated Press.