it's generally more difficult for your body to fight off fungal infections than bacterial infections because fungi are so much more similar to our own cells than bacterial cells. harder to differentiate self from non-self (which is the whole basis on which our immune systems operate)

also, basic bitches always talk about how the mitochondrion and chloroplast are of bacterial origin but no one ever talks about the nucleus for some reason ? the nucleus was probably an archaeon that got swallowed up by a bacterial cell. that's why our nuclear DNA is more similar to organisms in the domain Archaea than to bacteria. I've been thinkin about endosymbiosis a lot lately (like, were proto-mitochondria well adapted to metabolize O2 right out of the gate? that doesn't seem like it should happen based on how little oxygen was in the atmosphere up until ~.85 billion years ago [barely exceeding 5% of the atmosphere], and the engulfment of mitochondria is said to have occurred well before that: as early as 2.7 billion years ago, as late as 1.4 billion years ago from what I've read). idk , that story just don't sound like it add up but I'ma keep readin !