Gastrointestinal infections are infections that affect the digestive system, including the stomach, intestines, and other organs involved in digestion. These infections are typically caused by bacteria, viruses, parasites, or fungi, and can result in symptoms such as nausea, vomiting, diarrhea, abdominal pain, and fever. Common gastrointestinal infections include gastroenteritis, food poisoning, and infections caused by organisms such as E. coli, Salmonella, and Norovirus. Treatment for these infections often involves rest, hydration, and in some cases, antibiotics or antiviral medications. Preventative measures such as proper food handling and hygiene practices can help reduce the risk of contracting gastrointestinal infections.