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小儿时期肠道感染约20％由细菌所致,而非细菌性肠炎中大部份系由病毒引起。从人类下消化道分离出来的病毒约有70余种,其中就其重要性与广泛性而言,莫过于轮状病毒(Rotavinus),它可侵犯人类和乳兽,在小儿中为急性胃肠炎的重要原因。最初于1969年发现引起牛犊肠炎的轮状病毒,1973年在澳大利亚墨尔本的小儿急性胃肠炎的十二指肠粘膜活检标本中,用电子显微镜发现了人轮状病毒,以后又相继在澳大利亚和英国的新生儿流行性腹泻患者的粪便中发现,并在日本也获证实。
About 20% of intestinal infections in infancy are caused by bacteria, whereas most of non-bacterial enteritis is caused by viruses. There are more than 70 viruses isolated from the human lower gastrointestinal tract, of which Rotavinus, in terms of its importance and universality, can invade humans and milk beasts, in children with acute gastrointestinal An important reason for inflammation. Originally discovered in 1969 to cause rotavirus enteritis, in 1973, in Melbourne, Australia, children with acute gastroenteritis in duodenal biopsy specimens, electron microscopy was found in human rotavirus, and later in succession in Australia and Found in feces of patients with neonatal diarrhea in the United Kingdom and confirmed in Japan.