A Virus Looks Like a Wheel像轮子的病毒/“轮”状病毒

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Causative agent 病原体 Rotavirus, which has a characteristic wheel-like appearance under electron microscopy, is one of the most common causes of diarrhoea among children worldwide. The disease is more commonly seen in cooler months. 在电子显微镜下呈轮状的轮状病毒，是全球引起儿童腹泻的最常见病因之一。轮状病毒感染较常见于天气较凉的季节。 Clinical features 病症 The disease is characterised by vomiting and watery diarrhoea for 3 – 7 days. Fever and abdominal pain are also frequently reported. Rotavirus gastroenteritis is a self-limiting illness in healthy persons. However, it is occasionally associated with severe dehydration in young children. Immunity after infection is incomplete, but re-infections tend to be less severe than the original infection. 主要病征包括呕吐和水状腹泻，情况一般会持续3 – 7 天 ………………………………