As of Aug. 20, hospitals in 27 states handled at least 68 possible cases of Ebola, the U.S. Centers for Disease Control and Prevention told ABC News. Of the patients with possible Ebola infections, 58 cases have been ruled false alarms and 10 patients' blood samples were sent to the CDC for testing. Seven of the blood samples were negative for Ebola and the results for the remaining three samples are pending.
According to the CDC, the hospitals contacted the agency out of an "abundance of caution." Once a physician determines Ebola is a possible diagnosis, a CDC official will work with the health care facility and speak with someone close to the patient to determine a more thorough travel history of the patient, ABC News reported.
CDC spokesperson Kristen Nordlund stated the agency is taking the Ebola threat seriously, but it is important for officials to get a detailed travel history to narrow the possibility of infection down.
"If somebody had traveled to Guinea and came back and had a fever and has never been to a place where Ebola is transmitted, there's no reason to suspect there's Ebola just because Ebola is circulating in Guinea," said Nordlund.
The most recent U.S. cases to hit the news are concerning a patient in New Mexico and a patient in California, both of whom officials believe could have been exposed to the virus. Both are awaiting test results.
Additionally, the first American aid worker who was treated for Ebola in the U.S. has been released from the hospital, The New York Times reported. Dr. Kent Brantly has recovered from Ebola after being treated at Emory University Hospital.
"Today is a miraculous day," said Brantly, at a conference held after his release. "I am thrilled to be alive, to be well and to be reunited with my family."