It's a *potentially* nasty vector, but it is also very much in the interests of everyone involved to NOT have a spread of SARS this way, to quarantine people early...
After all, on the part of the MP, it would be *really* bad pubicity (oops, spelling mistaek) to be a vector, at least for places where reputation is of any importance. And nobody makes any money when a quarantine is on, nor if there are 10 MPAs on respirators at the hospital. Even if an MP is run by scoundrels with what amount to "sex slaves," it is not in THEIR interests to have customers in the hospital, or girls sick *or worse*. They often depend on not really being noticed; being a source of 20 cases of SARS would get them "noticed" by all the wrong people.
I would personally steer clear of places that *aren't* normally noted as being clean, as habits that are normally "poor" can lead to bigger trouble in this case. (The EBC place noted for offering "far too many extras" would be a good example...)
Personally, I caught a cold this week; I'm pretty stuffed up right now. When the symptoms started coming on, it was not initially evident whether it was "just a cold," and I would certainly NOT be interested in generally publicizing it if it had been SARS, and the vector had been Studio B. (While it's possible I caught a cold from someone there, it wasn't SARS, and it's as possible that the conduit was elevator buttons in my apartment building.)
But during the time when I was thinking "It *might* be SARS," the thought that it could have come from an MP visit did not fill me with joy and gladness...