Some people seem to get "stomach bugs" all the time, while other people rarely have these issues. Vomiting, abdominal pain, fever, and diarrhea are the common symptoms of a variety of enteric infections that often start after the soon-to-be victim ingests the infectious organism. These bacteria have wonderful names like Salmonella, Shigella, Campylobacter, E. coli, Vibrio, and C. difficile, just to name a few. The symptoms of gastroenteritis and infectious colitis can range from a minor annoyance to life-threatening dehydration due to ongoing vomiting and diarrhea.