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In reply to the discussion: Scientists suspect link between cat feces, female suicide [View all]kestrel91316
(51,666 posts)shed infective oocysts.
Didn't get it from wild birds or their poop. They have nothing to do with Toxo.
Cat poop in the garden outside is a common source, but like I said, incompletely cooked meat is more likely than anything.
For the record, I am a veterinarian, have a cat practice, have a special interest in zoonotic diseases (Toxo is the biggie in cats), and also have a degree in microbiology. I will hunt for a link and edit this post. But this topic is one that is not just professional interest - I have a duty to know this stuff.
ETA: Here's CDC's page on the epidemiology of Toxo.
http://www.cdc.gov/parasites/toxoplasmosis/epi.html
I don't have a link for the article that showed how there was no statistical link between cats and humans with positive Toxo titers, but I know this has been researched well and published and it's common knowledge in the zoonosis community. Maybe I saw it at Worms & Germs blog.