Seek emergency treatment if severe pain accompanies the illness, if vomiting doesn\'t stop in a couple of hours, or if bloody diarrhea is experienced.
如果出现剧痛、呕吐不能在两三个小时内停止，腹泻带血等症状，则必须寻求紧急治疗。
Also on the list are bloody diarrhea or stools that are black or tar colored.
此外名单上有带血的腹泻或粪便是黑色或柏油色。
Acute diarrhea is most likely infectious, especially if onset is sudden or accompanied by vomiting, bloody stools, fever, anorexia, or listlessness.
急性腹泻最可能是感染性，特别是起病突然或伴有呕吐、便血、发烧、厌食或无精打采等情形。
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