Salmonella is commonly found in contaminated meat, poultry, raw milk, eggs, egg products, and water. Infected pet turtles and reptiles, carmine red dye, and tainted marijuana are all documented origins. Eating unwashed fruits and vegetables can also lead to infection. Nontyphoidal salmonella occurs most often in the digestive system of humans and animals. Symptoms include diarrhea, fever, abdominal pain, and vomiting. The illness usually lasts four to seven days and requires treatment with antibiotics. Neurological symptoms (i.e., meningitis) can occur in infants younger than 1 year old or individuals with a weak immune system. These patients should see a physician immediately if they develop any of these symptoms. Patients with preexisting conditions such as cancer, AIDS, organ transplants, cirrhosis, diabetes, depression, or heart disease are at greater risk for severe complications from salmonella infection. Those patients should take special precautions not to contaminate their food or drink while eating out or in vacation homes where cleaning procedures may be less strict than in regular restaurants. Travelers to areas where salmonella is common should avoid eating uncooked meats and foods that have not been thoroughly cooked until after returning home.