Could owning a cat raise the risk of mental illness? - Medical News Today

They are cute, fluffy and have that wide-eyed glare that few of us can resist; it is no wonder more than 95 million of us own a cat. But there may be a darker side to our four-legged friends. New research claims the animals could increase our risk of mental illnesses, including schizophrenia and bipolar disorder.
Two studies published in the journals Schizophrenia Research and Acta Psychiatrica Scandinavica attribute this association to Toxoplasma gondii - a parasite found in the intestines of cats. Humans can become infected with the parasite by accidentally swallowing it after coming into contact with the animal's feces.

T. gondii is the cause of a disease known as toxoplasmosis. According to the Centers for Disease Control and Prevention (CDC), more than 60 million people in the US are infected with the parasite, though the majority of people are not aware of it.

Toxoplasmosis and Polygenic Disease Susceptibility Genes: Extensive Toxoplasma gondii Host/Pathogen Interactome Enrichment in Nine Psychiatric or Neurological Disorders

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