婴幼儿腹泻病是小儿常见的一种消化道疾病，严重威胁着婴幼儿的健康，已列为我国儿童重点防治的四大疾病之一。婴幼儿腹泻全年均可发生，以秋冬季发病率较高，称为秋季腹泻，主要由轮状病毒感染引起。随着抗生素的临床应用，耐药菌株逐渐增多，肠道内菌群失调，给临床治疗带来 Infantile diarrhea is a common gastrointestinal disease in children, a serious threat to the health of infants and young children, has been listed as one of the four major diseases prevention and control of children in our country. Infant diarrhea can occur throughout the year to a higher incidence of autumn and winter, known as autumn diarrhea, mainly caused by rotavirus infection. With the clinical application of antibiotics, drug-resistant strains gradually increased, intestinal flora, to bring clinical treatment