Though i was originally training as a respiratory physician. but in the last 16 years of my practice became a real general physician in rural and regional areas. But GI infections are the major problem with improper food handling.Here is a USDA article on foodborn illnesses. People may treat the subject lightly but many die each year from these illnesses.
Personally I identified a major salmonella outbreak from Griffith to Mildura by diagnosing the initial carrier who was a cook at a pub about midway between the two.
My personal involvement is looking out for Vibrio Vulcanificus as it is a bacteria that thrives particularly in high iron situations so those of us with Haemochromatosis are at a higher risk. often comes from eating oysters which I love. I became well aware of all the possible symptoms and have diagnosed several cases. Usually occurs in tropical and subtropical climates but i diagnosed a case that originated in Tasmania. The fellow had the typical skin rash. He was a commercial sea urchin diver. Sea urchins live on oysters. A short search revealed that oysters from St. helens had been found to contain vibrio vulcanificus and he operated out of St. Helens.