Call 911 if your child gets a head injury that's accompanied by unconsciousness, vomiting, unresponsiveness, confusion, or weakness in the limbs.

若你的孩子头部受伤并随之出现昏迷，呕吐，反应迟钝，思维混乱或四肢无力的症状，就呼叫911。

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Signs of low back tenderness (58.8%), abnormal pinprick sensation (58.0%), lumbar dysfunction (43.3%), and muscle weakness of the lower limbs (42.3%) were commonly observed.

临床体征以腰背部压痛(58.8%)、下肢皮肤针刺觉异常(58.0%)、腰椎活动受限(43.3%)和下肢肌力减弱(42.3%)多见。

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Limbs far end has muscle weakness, amyotrophy, tendinous reflex drops or disappear, often have " ungual state hand " reach hang down sufficient.

肢体远端有肌软弱， 肌萎缩，腱反射减退或消失，常有「爪状手」及垂足。

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Dr Puliyel blames the polio vaccine for a sharp rise in India of cases of Acute Flaccid Paralysis - weakness or inability to move limbs.

BBC: Bill Gates: The world can defeat polio