Food poisioning

I am writing this with a sore stomach after buying chips and fatcakes from fat cake city. Witfield next to spar. Now i have a severe stomach bug. The reason i know it's food from fat cake city is that today i was fasting decided to break my fast with fast food from fat cake city now my stomach is sore which is the only food i ate for the day. Can they improve their hygiene and not leave food out in the open without covering it.