 [ Symptoms ] i just ate undercooked chicken at a restaurant what should i do  the chicken breast was half cooked and half raw [ Disease ] nothing right now you did not necessarily become exposed to pathogens like salmonella common in undercooked chicken so if you do not show any signs of a gastrointestinal reaction nausea vomiting diarrhea chances are that you just had a poorly cooked meal that will not cause you harm should you become ill however you will need to consult your medical provider so you can be properly examined diagnosed and treated