There's so much BS around toxoplasmosis online. And apparently in this article. Here's corrections for two common misconceptions:
1) Almost everyone who has it got it from eating undercooked meat, not from cats. France has the highest rate of toxoplasmosis in the world because of their propensity for rare meats: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5312802/.
2) Unless your cat lived a long part of it's life as an outdoor cat, it is very unlikely to have the parasite (like any parasite).
So I suspect toxoplasmosis is completely uninvolved in any correlation they may have found.
1) Almost everyone who has it got it from eating undercooked meat, not from cats. France has the highest rate of toxoplasmosis in the world because of their propensity for rare meats: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5312802/.
2) Unless your cat lived a long part of it's life as an outdoor cat, it is very unlikely to have the parasite (like any parasite).
So I suspect toxoplasmosis is completely uninvolved in any correlation they may have found.