在十多年前,对于婴幼儿腹泻,由于粪便中找不到细菌的证据,临床上多诊断为幼儿腹泻或单纯性腹泻。近年来随着电子显微镜(EM)、免疫电子显微镜(IEM)、酶联免疫吸附试验(EUSA),固相放射免疫(SPRIA)和免疫荧光(IF)等实验诊断技术的进展以及细胞培养病毒的广泛应用,逐渐认识到这些不明原因的婴幼儿腹泻中有很多是由于新的病毒感染所引 More than a decade ago, diarrhea in infants and young children, due to the absence of evidence of bacteria found in the stool, the clinical diagnosis of multiple childhood diarrhea or simple diarrhea. In recent years, with the progress of experimental diagnostic techniques such as electron microscopy (EM), immunoelectron microscopy (IEM), enzyme-linked immunosorbent assay (EUSA), solid phase radioimmunoassay (SPRIA) and immunofluorescence (IF) Widely used, and gradually realize that many of these unexplained infant diarrhea are due to the new virus infection