When the outbreak occured a couple years ago, I checked and rechecked with Chicken soup that their food was not affected and they posted on their website that they do not get ingredients from China and their food is not affected. I continued to feed my cats the chicken soup and have not had a single issue with it. I've been feeding my cats this same food for about 5 years now and they are doing tremendously well. In fact they look and act like they are young even though they are 14, 13 and 9 years old. So I have no problem highly recommending the Chicken soup to you.
If you have a hard time trusting the food manufacturers then I suggest you homecook or go to a raw diet. I know many people who have done this with their dogs and love it and their dogs are truly benefiting from it as well.