The rise of social networking has made it easier for people with rare diseases to connect with each other and feel less alone.

社交网络的普及使得患有罕见疾病的人可以相互联系，不那么孤独。

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Conclusions PPS is a rare and slowly progressive syndrome. The other diseases need to be ruled out before it is diagnosed.

结论PPS是一种少见的、缓慢进展的临床综合征，诊断时需要排除其他神经肌肉疾病。

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Some rare genetic diseases can make patients susceptible to infections with Mycobacterium species, the bacteria that amongst other diseases, cause tuberculosis and leprosy.

某些罕见的遗传性疾病会造成患者对分支杆菌属极其易感，这一类细菌中的一些成员就是结核病和麻风病的病原体。

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Glaxo will also work with the Italian researchers to develop the gene therapy for six other rare diseases.

FORBES: Glaxo Brings Gene Therapy Back From The Dead

Moreover, repositioning such drugs to treat other rare diseases can ring more registers.

FORBES: Orphan Drugs: 'Rare' Opportunities To Make Money

But a lot of credit for this recent bounce should go to the FDA itself, which under Commissioner Margaret Hamburg has worked more closely with companies to streamline the approval process, particularly in cancer and other rare diseases.

FORBES: New Drug Approval Rate At Near-Record High, FDA Says