ROUGH CUT, NO REPORTER NARRATION<br/> <br />The first nurse in the U.S. to contract Ebola, Nina Pham, arrives at National Institutes of Health (NIH) in Maryland.<br/> <br />The 26-year-old was transferred by a specially-equipped medical jet and will be treated in an isolation unit.<br/> <br />Pham fell ill after caring for Liberian Thomas Eric Duncan who died from the disease last week at the Texas Health Presbyterian Hospital.<br/> <br />Concerns in the U.S. have intensified after two Texas nurses who cared for a dying Liberian patient contracted the virus that has killed nearly 4,500 people.
