In 1924 a mystery illness killed Sir Archibald Douglas Reid, the man who X-rayed Tutankhamun's mummy.

1924年，用X光透视图坦卡蒙法老木乃伊的齐伯尔特·道格拉斯·里德教授也死于一场神秘的疾病。

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It wasn't until four years later, aged 13, that I discovered the mystery illness that killed her wasn't a headache but a brain tumour.

直到四年后，我13岁的时候，才发现那个杀死我母亲的神秘疾病不是头痛，而是脑部肿瘤。

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Handlers at an animal sanctuary in North-East Australia were mystified when their star attraction, Tonka the wombat, was brought low by a mystery illness.

澳大利亚东北部动物保护区的管理者们近来发现他们的明星袋熊唐卡因不明原因的病症体重下降了，他们对此感到很疑惑。

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She first experienced a mystery winter illness aged 13 and then had no other problems until she was 40.

BBC: Does too little sunlight give us all the winter blues?

The extent of Mr Chavez's illness is shrouded in mystery, but it is understood to be serious.

BBC: Hugo Chavez returns to Venezuela after Cuba cancer care