The US Center for Disease Control (CDC) said this is likely an old infection contracted more than six months ago.
The person is healthy and has had no serious illness in the past 12 months, said Dr. Enrique Tayag, director of the Department of Health's National Epidemiology Center.
http://www.abs-cbnnews.com/nation/01/23/09/doh-one-worker-rp-infected-ebola-reston