Two U.S. aid workers that contracted Ebola during their work in Africa are being brought back to the U.S. for treatment at Emory University Hospital in Atlanta, GA. USA Today reports that the first of those two patients is entering the U.S. today and will be treated at the hospital’s isolation unit, one of only four such units in the country. This will be the first time that Ebola is treated in the U.S. Hospital officials are confident that they will be able to prevent spread of Ebola beyond the two patients.

However, members of the public may not share their confidence. According to Politico, the outspoken Donald Trump has commented that this is certain proof the U.S. “leaders are incompetent.”

“Ebola patient will be brought to the U.S. in a few days — now I know for sure that our leaders are incompetent,” Trump tweeted Thursday. 

Despite the isolation unit being both physically separate and having the infrastructure and equipment to ensure clinical isolation, Trump is not convinced.

“KEEP THEM OUT OF HERE!” he added.

Dr. Bruce Ribner, the physician that will oversee care, has emphasized that people must understand that the spread of Ebola is not “by some magical mechanism.” It is spread by close contact with blood and other bodily fluids. Ebola is not spread by breathing the same air as an infected person. Dr. Ribner is so certain of the safety precautions that he will be one of the people coming into direct contact with infected patients and has no concerns that he will be at risk.

The World Health Organization (WHO) states that Ebola is a severe acute viral illness often characterized by the sudden onset of fever, intense weakness, muscle pain, headache and sore throat.  This is followed by vomiting, diarrhea, rash, impaired kidney and liver function, and in some cases, both internal and external bleeding.