The facts, as being reported just 20 minutes ago, are that the nurse did not follow proper protocol. That perfectly supports what I eluded to earlier.
Despite the snarky exchange, I actually do agree with you that they are underestimating the ease of transmission. However, when you have people working in close contact to someone who is coughing, spitting up blood (as well as coming out all other orifices), having diarrhea, and vomiting out a disease that can live for days in the open environment, it makes the transfer a bit more viable...of course, in my opinion.