Parkinson's Movement
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Toxoplasmosis and Parkinson's

Has there been any research that correlates cat ownership and the development of PD-- Specifically, exposure to toxoplasmosis.

I did a cursory search and found some evidence of a correlation. Wondering what percentage of PWP have owned cats and if the cats could be a possible vector.

I would appreciate sharing speculations regarding the possibility of this causality.

Thank you.

3 Replies

There has been some discussion of this in the Neurotalk forum over the years. If you can find the distribution of cat ownership across the US (preferably on a county-by-county basis), you could compare it with maps showing the prevalence of PD in the paper by Willis et al. (2010).

I'd like to hear more about your research.



Thank you, John. I'll try to research the suggestions provided.


You pose a vary interesting question.

I can't answer your question, but I can tell you that I always had multiple cats when I was growing up. At 19, I suddenly became allergic to them and have been ever since (I'm 63 now). I was diagnosed with PD at age 58. No one else in my family has cat allergies; no one else in my family has PD.

Have you been able to do any preliminary research into this issue?


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