a.j. ross reports. >> it's been a long and frightening day for passengers on board united flight 99 8 brussels. according to sources a man on board was vomiting prompting concerns of ebola. as you can imagine every safety precaution was taken. just a few hours before united airlines flight 99 was scheduled to land at newark international erpt an alarming announcement was made to passengers. >> we were told that someone was sick on the flight basically said there was a medical emergency. >> they asked if there was a medical professional on the flight. >> a 35-year-old man liberia boarded the plane and suddenly became hillen began to vomit. sparking fears of he bowl a once on the ground cdc swarmed the plane with one tweeting the passenger from this follow inside. >> it was scary sfwlt man and his daughter were escorted off in full hazmat gear and taken to university hospital for treatment and tests. >> looked wobbly and this is -- i didn't see them until they were walking him offer the plane. >>