That disease is why pregnant women shouldn't handle cat box duties.
The article mentions that, whether or not there is a link between schizophrenia and the T. gondii parasite, the parasite has been proven to have other serious health risks, "especially for pregnant women, who can pass the parasite through the placenta to the fetus . . .". The article goes on to say "T. gondii increases the risk of miscarriage, stillbirth or serious health problems for the child, including vision problems, blindness, developmental delays and learning differences."
Considering these known risks of exposure to T. gondii, it seems quite reasonable that this schizophrenia link is also possible.
It makes me wonder if it is feasible to develop a screening and/or treatment for cats, to kill the T. gondii parasite, before a cat is adopted into a home.