Another worrisome aspect of this Dallas case is that this gentleman actually went to the same hosptial two days earlier because he felt ill, but they didn't ask about his recent travel history and sent him home with a prescription for antibiotics. Only two days later did he deteroriate to the point to require an ambulance to take him back to the same hospital.

Fortunately, he stayed home during those two days when he was symptomatic and presumably infectious so his contact with the public was minimized. Still, whoever was caring for him is presumably at high risk.