Coming into close contact with cats can spread a parasite called Toxoplasma gondii (T. gondii) – also dubbed the “cat poop parasite” – which are linked to schizophrenia and other mental disorders that affect humans.
The cat-carried parasite is the most common in developed countries and can infect any warm-blooded species, according to the Schizophrenia Bulletin. Although most humans don’t suffer any symptoms from the widespread parasite, it can cause the illness T. gondii, which is linked to weeks of flu-like symptoms, blindness and even death, CBS News reports.
Two new studies have now linked the T. gondii parasite to increased rates of mental illness in cat owners who may have had increased exposure to parasitic infection.
“Cat ownership in childhood has now been reported in three studies to be significantly more common in families in which the child is later diagnosed with schizophrenia or another serious mental illness,” write study authors E. Fuller Torrey of the Stanley Medical Research Institute and Dr. Robert H. Yolken of Johns Hopkins University School of Medicine.
The researchers compared two previous studies that linked childhood cat ownership and the development of schizophrenia later in life from a 1982 mental health survey. A second study by A.L. Sutterland from the Department of Psychiatry at the Academic Medical Centre in Amsterdam reviewed 50 published studies to a T. gondii infection being tied to mental disorders. (Read more from “Study: Cat Parasite Linked to Mental Illnesses” HERE)