Neelix is immune to the cheese infection of course because he’s been eating his own experiments for a while and we get a Neelix-Doctor teamup to save people from the disease. But not before most of the crew turns into an infection vomiting mess of cheese zombies. Neelix gets to show expertise and care in the recovery of his crewmates, as well as regret/pathos for wielding his dangerous culinary powers with abandon

Knowledgeable people hate this one simple trick

I feel like the more ridiculous a neelix plotline, the better. Cheese premise all the way. Could have gone further with it tho. Maybe the cheese bacteria become horrendously infectious and produce a disgusting disease that incapacitates the crew. Bring that shit into DS9 Ferengi or TNG Q episodes of goof level wackery. I feel like his character was intended to fill a similar niche but they never made him into the chaos goblin he should have been.