Cat feces contain Toxoplasma gondii, and cat owners may be infected with "Toxoplasmosis". The symptoms of this disease are similar to those of the flu. However, it is also fatal to a small number of people with low immunity, such as pregnant women. Statistics show that many pet-friendly Britons and Americans suffer from toxoplasmosis. Toxoplasmosis may also induce depression and anxiety by affecting dopamine secretion; suffering from toxoplasmosis may also exacerbate schizophrenia and two-way affective disorders symptom. Based on the above description, Which of the following inferences are correct:. ['Cats do not have Toxoplasmosis.', 'People who do n’t own cats do n’t get toxoplasmosis.', 'Cats in pregnant women can cause fetal developmental abnormalities.', 'Improper handling of cats can threaten the physical and mental health of cat owners.']