Food poisoning for 1 day, origin and sideffects anxiety

Age 28 Sex M Height ~180cm Weight ~77kg Food poisoning: severe diarrhea, stomach cramps, 38celsius fever, no appetite. It has been about 30 hours since symptoms first started, feeling better at the moment, So I have 2 questions that I would like answered. I have a grill stove, and I had grilled some chicken and as this chicken was almost done and ready to eat, couple of raw burger were added pretty close to my chicken. 1.Is it possible that bacteria from this raw burger meat jumped to my chicken causing the food poisoning? 2.I am mildly anemic, will this food poisoning have any long term effects on my intestinals ability to absorb iron or to my health in general?