Sigh, relying on people to "self-regulate, or quarantine themselves, is a very dangerous medical policy, especially when you KNOW Ebola causes mental health and impulse control issues. One of the effects the Ebola virus has is to reduce judgment ability. In effect, you are dealing with what Doomer Doug will now call VIRAL INTOXICATION.
Yep, this lady obviously had serious health issues on the train, or she would not have sought help. She potentially exposed everybody on the subway train. I think the average size for ONE mass transit car is around 40 to 60 people, depending on the seat configuration. There also may, repeat may have been, a separate group of people hanging on the straps and standing up. If that is the case, they would have been less than one or two feet away from her, assuming she was in a seat. If she was standing up, there WOULD EASILY BE THREE TO EIGHT PEOPLE WITHIN ONE FOOT OF HER. Doomer Doug rides mass transit, MAX light rail and buses, so these figures are totally accurate.
This is a potential health disaster and this lady may have personally exposed sixty people to Ebola. People who it will be very, very hard to track down.