母婴感染是非常常见的，所以人们很容易提出这样的质疑：假如感染是精神分裂症的病因，为什么没有更多的新生儿成为患者呢？

Maternal and intrauterine infections are notably common, so one question is that if schizophrenia is infectious in origin, why aren't more offspring born with schizophrenia?

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近来，几项研究显示，冬季新生儿比夏季新生儿更容易患上精神分裂症、抑郁症和季节情感紊乱症(SAD)。

Several recent studies have suggested that winter-born babies are more likely than summer ones to develop conditions such as schizophrenia, depression and seasonal affective disorder (SAD).

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所有证据在因特网上很容易就能找到，都表明Loughner可能患有精神疾病，比如精神分裂症。

All of this evidence, which is easily accessible on the Internet, points to the possibility that Loughner may be suffering from a mental illness like schizophrenia.

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