Jenny we dont know.
Cepacia occurs naturally in the environment.
Periodically it is found in various products. Ones I heard of:
Shampoo
Lotion
Mouthwash
Distilled Water
Tap Water
Rotten Onions (B. Cepacia is what causes onion rot)
Whether they are a risk at any point is hard to know, as I'm not aware of any standards for testing for cepacia.
It is only a risk to thoses with CF or other immumocompromised lungs so there is not much motivation to test/control.
Unfortunately, it is a lot like PA in that there is little way to avoid it since it exists all around us <img src="i/expressions/face-icon-small-sad.gif" border="0">