Reston ebolavirus (Rebov) has only been seen in monkeys and humans previously and, unlike other types of Ebola, it is not known to cause illness in people. Researchers say it is theoretically possible for the virus to mutate in pigs into a form that might sicken people. The Philippines had tested 141 people, the researchers said, and six of them who either worked on pig farms or with swine products were found with antibodies to the Ebola-Reston virus, which means they might have been infected by pigs at some time. However, they showed no signs of illness. Rebov belongs to...
