Salmonella is a common pathogenic bacterium that is often found in the gastrointestinal tract and can infect both humans and animals. Usually, Salmonella is mainly transmitted through the fecal-oral route, but direct or indirect contact can also cause infection. Common clinical symptoms of patients include abdominal pain, diarrhea, nausea, vomiting, malaise, fever, and loss of appetite. If humans are infected with this bacteria, it can lead to enteric fever, acute enteritis and other diseases: 1. Enteric fever: including typhoid fever and paratyphoid fever. As the patient drinks or consumes contaminated water or food, the pathogenic bacteria enter the digestive tract and intestine, cross the intestinal mucosal epithelial barrier, invade the intestinal lymphatic tissue, and spread to multiple tissues and organs of the body via lymphatic vessels and blood. Once diagnosed, patients need to be isolated immediately and treated with levofloxacin, ofloxacin, ciprofloxacin and other drugs under the guidance of a doctor. 2. Acute enteritis: due to the consumption of contaminated food, resulting in nausea, vomiting, diarrhea and other symptoms, patients need to promptly induce vomiting or gastric lavage to expel food containing toxins. In addition, drugs such as atropine and scopolamine can be taken for treatment under the guidance of a doctor. Patients should drink more water to avoid water-electrolyte disorders due to vomiting and diarrhea.