I wonder where in the twister she got the infection. Obviously it's from the chicken, but if the chicken in the twister was not cooked properly, you would think that at least one other piece would also be affected, and other people would get the same infection, which I am not sure there are.
It could of also come from the tongs used for raw chicken on the cooked chicken, but again this should mean that more pieces will be affected.
Either way, when I used to work at KFC (for a whole 2 years...) our managers were fairly strict and used to throw out heaps of chicken if the cook did a dodgy job, but in saying this, I could see a cook just ignoring the consequences of one small mistake.
Very Interesting...