Examples: ophiocordyceps [0,1] is a fungus, and toxoplasmosis [2,3] is a single-celled eukaryote. I've commented this before: this is a loophole in the ToS.

[0] https://news.ycombinator.com/item?id=15651231 ("'Zombie ant' brains left intact by fungal parasite")

[1] https://en.wikipedia.org/wiki/Ophiocordyceps_unilateralis

[2] https://news.ycombinator.com/item?id=15376654 ("Rage Disorder Linked with Toxoplasmosis")

[3] https://en.wikipedia.org/wiki/Toxoplasma_gondii