Yes, I don't have the hospital yet, but I am pretty far along in the game. I think only 10 people have gotten sick the whole time, so not many opportunities to heal anyone. In previous VV games you could keep taking them to the herb plants and they would "study" them and gain knowledge in the area or healing, thereby raising their level. All I have right now are a couple of trainee doctors, but I have 6 villagers currently that are masters in everything but healing. Just not getting there.