KFC Coleslaw Illness Recurs - KFC,

My grandfather loves KFC " after consuming coleslaw @ salad ,I have gut wrenching pain feels like my stomach will explode from inside out, very sore neck headache flu like symptoms the coleslaw taste was off but I consumed , this has occured before after consuming same food, I previously prefered not to ever eat at kfc due to past symptoms was questionable , but I have read quite a bit on internet listeria e-cole from cole slaw kfc. | Symptoms: Diarrhea, Fever, Headache, Stomach Pain, Soreness