f606365a_obes_and_food___Food_poisoning__Original_source
[Name of bacterium] Escherichia coli E. coli O157:H7 is a very nasty strain it can be fatal [Risky foods] contaminated water, milk, inadequately cooked meat, cross-contaminated foods [Time to develop] 3-4 days [Symptoms] inflammation, sickness and diarrhoea [Original source] 
the gut of all humans and animals
Microbiology Online | Society for General Microbiology | About Microbiology - Microbes and food - Food poisoning
Original source