re: 2nd health care worker tests positive for Ebola at Dallas hospital

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Ebola can only be transmitted when an infected person shows symptoms.

I'm starting to doubt this.

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Even if so, how many people know immediately when they have a fever? How many surfaces do they touch/people do they interact with before they do realize it? Rub an eye, have an itchy nose, then touch an ATM keypad, handle money, put something back on the shelf at a grocery store? Sneeze or cough around other people? And I think all of us know at least one person who can't seem to speak without spraying spit everywhere.

Those working around an Ebola patient are probably checking frequently for a fever or symptoms the rest of us, not knowing we'd been exposed to a risk, would shrug off.

The protocol in hospitals isn't working 100%, but the workers there have more protection than the general public. If this disease ever infects someone outside the hospital setting I think it could easily run rampant in a hurry.