I really enjoyed house. Love Hugh Laurie as an actor. I’ve watched the shows more times than I can count although it’s been a long time I think I know the episode you’re talking about.

But im pretty sure it was toxoplasmosis they said was caused by a fungus and not malaria.

The only malaria episode I remember is where the guy can’t speak properly, a journalist with bipolar or something. They diagnose malaria at the end but I don’t remember them mentioning fungus.

I checked for that episode and it was s2e10 “failure to communicate”, diagnosis was cerebral malaria. Some websites listed the goofs and they say that when they looked into the slides the “parasite” that was supposed to be malaria looked more like the bacteria that causes syphilis.

I’m trying to find the episode with toxoplasmosis but I can’t remember what the episode was called. I remember it was about a politician. I’ll edit it when I find it.

E: https://www.moviemistakes.com/tv4941/episode23818

Didn’t take long, s1e17, “role model”. It wasn’t the final diagnosis so I couldn’t find it in the list. But that website has the mistake listed at the top.

“Factual error: House and Foreman tell the Senator that he has toxoplasmosis, which is caused by a fungus. Toxoplasmosis is actually caused by a protozoan parasite”