OK, let's take this one question at a time ...
Q: How does a nurse who is working in a very modern hospital in Spain, and has specialized in treating infectious disease for 15 years, get infected?
A: Any number of ways, but my first thought would be complacency.
Q: Also, how does the NBC cameraman get it by washing the car of an infected man?
A: If they cleaned the car with a power washer, the virus was probably splashed up on him and/or he inhaled water mist with the virus in it.
Q: (kinda) Also, the CDC previously stated that you can't get it from dogs. Now, disease specialists are going to torch the nurse's dog.
A: (kinda) I'm gonna go with overkill here. Looks good for the cameras kinda thing. The "there, THEY did SOMETHING, so we are all safe" kinda thing ...
Q: (again kinda) So, the guy in Dallas was puking all over the sidewalk and parking lot - wasn't cleaned up for days. A dog comes by to the vomit....
A: (again kinda) Again, cleaned up with a power washer ... If there wasn't bleach in the water used (and in the proper proportions) ... and even if there was there still has to be extended contact with the bleach to kill the virus (10 minutes IIRC, again in the right percentage solution) ... So yeah, I'd buy that there is some concern. Also, UV light kills it, too, from what I understand.
Q: (well not really) Not buying that this thing hasn't mutated.
A: (well again not really. More my take ...) I don't think it has. And even if it has mutated the odds of getting just the "right" mutation mixed in with just the "right" environment for it to become even more lethal than it already is are pretty astronomical. Still, I get what you are saying.
In the end, right now, I think ebola is more a threat to our economy than it is to us personally. For now. That's not saying I'm not watching what's going on ... and I'm not doing certain things ... just in case. But all in all, I'll wig out if it crosses the state line ... Then GC is gonna retire I don't care WHAT he says ... Because I'm pretty sure he won't cotton to being isolated to a cot in the garage for 30 days ... and by "30 days" I mean 30 days AFTER his last venture out "into the wild" ...
lol
Next thing I know, me and a rancher and a couple of cowboys are a half-mile out in the pasture and my dad is rolling around on the ground laughing so hard he's crying ... 
I wasn't embarrassed. I was six. Damned cow scared the **** outta me. Those grown men were making all kinds of excuses though. THAT was pretty funny! 
