What happens is that patient takes antibiotic for, say 6 days instead of the reccomended 10 days. 99.9% of germs die, but .1% remain. They are of course the strongest of the original bugs and when antibiotics is stopped, the remaining strong bugs begin to multiply again.
As result, patient now has "super infection" of the strongest, most deadly germs, and antibiotic may not stop the "super bug."
Also some germs such as HIV can mutate but that is not case here.
I just did some quick research. Apparently, if you take it only for a couple of days it shouldn't alter your resistance. However, prolonged use (10 days to two weeks or more) will indeed create a resistant bacteria. Eighty percent of people who inhale anthrax die within days if they are not treated for it. In order for the Cipro to work it has to be taken at least within 12 to 24 hours of exposure. From what I've read, once the fever, chills and respiratory symptoms set in there is little that can be done. This disease in my opinion is a lot worse than we are being led to believe by officials.