ive only had muffy sick. and that was in june
since then, my villagers have been healthy. (tho they have fleas too often)
Sprinkle (peppy) got sick some days ago. Took 3 days of medicine to cure her!
That's my experience as well, its taken me three days each time and I've had the same villager (Alice) get sick multiple times..
Yeah, it usually takes three days! But it was weird when Agent S got sick because it only took her one day. Idk if it was a glitch or something?
I had three villagers get sick. They were all different personality types: Maple (normal), Agent S (peppy), and O'Hare (smug). I haven't heard of any of my villagers getting sick twice though, so I don't know. But it's definitely not only lazies that get sick.