The medic, who is not exhibiting symptoms of Ebola, will remain under observation for up to two weeks at the University of Nebraska Medical Center (UNMC) in Omaha, Nebraska Medicine said in a statement.
The Ebola outbreak in northeastern Democratic Republic of Congo, which has already killed more than 200 people, is expected to last until mid-2019, the World Health Organization's emergency response chief Peter Salama told reporters on Tuesday.
The strain of Ebola has killed 20 people and sickened four more already.
Democratic Republic of Congo's Ebola outbreak has been "largely contained" and no new cases of the disease have been confirmed since the last known sufferer died on June 9.
A statement late Friday said the confirmed cases are in Mbandaka city, where a single case was confirmed earlier in the week.
Democratic Republic of Congo has reported 39 cases of Ebola, including 19 deaths, according to the World Health Organization.
CNBC's Meg Tirrell reports that the World Health Organization has confirmed one laboratory case of Ebola in the Democratic Republic of the Congo.
An Ebola vaccine has proved successful in a large-scale human trial led by the World Health Organization.
Congress should reconvene, work together across the aisle and push through a funding package compromise now, says Dr. Judith Monroe.
Critical Zika funding legislation is one step (and about four Senate votes) away from the president's desk, says Martha Roby. We need to pass it now.
Zika virus is a growing threat, but funding is severely lacking. Here's what the private sector can do, say Dikembe Mutombo and Gary Cohen.
Zika shouldn't have caught us by surprise, writes Dr. Claire Pomeroy. Here's what needs to be done to prevent the next killer virus.
A Scottish nurse who recovered from Ebola has been readmitted to the hospital for a third time.
The rapid spread of the zika virus has spurred the hunt for a cure, but the financial incentive and likely length of time for a vaccine are unclear.
Johnson & Johnson has begun clinical trials for an Ebola vaccine in Sierra Leone.
A Scottish nurse who contracted the Ebola virus in Sierra Leone last year is back in hospital for more treatment.
Teen creates cheaper way to test for Ebola
Olivia Hallisey, Grand Prize Winner, Google Science Fair, 2015, talks about her creation of a portable, low-cost diagnostic test for Ebola and other infectious diseases.
The details of a very promising Ebola vaccine, with CNBC's Meg Tirrell.
A vaccine being developed by Merck and NewLink was shown to be 100 percent effective, but does this mean they'll make big bucks?