The common routes of transmission for the disease-causing bacteria are fecal-oral, person-to-person sexual contact, ingestion of contaminated food (generally unpasteurized (raw) milk and undercooked or poorly handled poultry), and waterborne (i.e., through contaminated drinking water). Contact with contaminated poultry, livestock, or household pets, especially puppies, can also cause disease. Animals farmed for meat are the main source of<unk> . A study published in PLoS Genetics (26 September 2008) by researchers from Lancashire, England, and Chicago, Illinois, found that 97 percent of<unk>  cases sampled in Lancashire were caused by bacteria typically found in chicken and livestock. In 57 percent of cases, the bacteria could be traced to chicken, and in 35 percent to cattle. Wild animal and environmental sources were accountable for just three percent of disease. The infectious dose is 1000–10,000 bacteria (although ten to five hundred bacteria can be enough to infect humans). Campylobacter species are sensitive to hydrochloric acid in the stomach, and acid reduction treatment can reduce the amount of inoculum needed to cause disease. Exposure to bacteria is often more common during travelling, and therefore<unk>  is a common form of travelers' diarrhea.
Campylobacteriosis
Cytomegalovirus colitis
Rotaviral gastroenteritis
Shigellosis
Antibiotic-associated diarrhea
Staphylococcal enteritis
Travelers' diarrhea
Eosinophilic gastroenteritis