It mystifies me how every single time on Imgur, when I make a comment about Toxoplasma gondii (usually on a picture of someone doing something unsanitary like letting a cat lick their food), it gets several upvotes, then suddenly DOWNVOTED TO OBLIVION. Like there's some cat-loving action squad waiting for the call to stomp out any mention of the connection between cats and T. gondii. They seem to refuse to believe that, despite numerous published and peer-reviewed studies, T. gondii is ubiquitous - one of the most common parasitic infections in the world. It's estimated that
33% of all humans are carriers, and not just in the 3rd world -
25% of Americans and
50% of Germans carry T. gondii. And yes, owning cats is a huge risk factor. If you've owned a cat, you're probably a carrier. Fortunately, the vast majority of T. gondii infections never progress beyond latent (asymptomatic) toxoplasmosis, although in recent years they've found the parasite does play a role in altering decision making - they make you like cats more, and decrease your reluctance to take risks.