Gastrointestinal infections Usually the onset of symptoms is relatively early. This is because symptoms develop within hours to 24 hours after eating contaminated food. Symptoms vary from severity to upper abdominal discomfort. Often have severe pain or even abdominal pain, loss of appetite, nausea and vomiting, often accompanied by inflammatory bowel disease. diarrhea watery stools

อ่านต่อได้ที่ : โรงเรียนวัดพ่วง นานาสาระ : การติดเชื้อ