Air Pig-The outbreak in the primate facility in Reston acutally WASA Ebola, not SHF. It was a new strain which is now known as Ebola Reston (guess why). It did infect several workers at the facility but in humans is presents mild symptoms similar to a case of the flu. The same disease appeared in a primate facility in Texas a few years later and was traced to the Phillipines IIRC.
It was a massive stroke of luck that this strain is very mild in humans, though obviously nothing to guarantee it couldn't mutate into something more dangerous. There was also evidence in that outbreak of limited airborne transmission, which caused some great concern for obvious reasons.