f606365a_obes_and_food___Food_poisoning__Original_source
[Name of bacterium] Clostridium perfringens [Risky foods] large joints of meat; reheated gravies [Time to develop] 8-24 hours [Symptoms] nausea, pain and diarrhoea [Original source] 
the environment
Microbiology Online | Society for General Microbiology | About Microbiology - Microbes and food - Food poisoning
Original source