People who are born in the _____ have a greater risk of prenatal exposure to a flu virus, making them more susceptible to schizophrenia. Evidence for a viral cause of schizophrenia is supported by comparisons of twins who _____.

Question

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People born in winter or spring are more likely to have been exposed to flu viruses during prenatal development. Studies show that twins who share a placenta have a higher concordance rate for schizophrenia, supporting the viral hypothesis.

People Who Are Born in the _____ Have a Greater