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?:abstract
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The viral hypothesis for schizophrenia has persisted for decades, initially supported by observed increases in psychoses subsequent to the influenza pandemic of the early twentieth century, and then later by evidence of elevated viral antibody titres particularly in schizophrenia patient populations. Several research studies have also focused on maternal infections during the second trimester of pregnancy and their long-term effects on fetal brain development, ultimately leading to schizophrenia. No specific virus has been implicated although a handful have received increasing attention. The current pandemic spreading the SARS CoV-2 corona virus world-wide is now showing anecdotal evidence of psychoses newly developing post viral exposure, implicating neuronal inflammation in crucial areas of the brain that could initiate psychotic symptoms. Time will tell if epidemiological data will, similar to the 1918 influenza pandemic, show that schizophrenia spectrum disorders increase after serious viral infections.
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