I've seen people who are already sick suffer very badly from mild illnesses too. My parents died during an epidemic so I Usually my brother can do more to help for diseases with his plant magic but we've all helped out since the temple where we were fostered is associated with the city's hospitals.
We have much less technology than is available here. I think there's more reliance on magic, though only a minority of people can actually perform it, but also I get the impression that this world is older. I've seen some similarities in what I've read about civilisations that were prominent a long way back in history in the way people live and the differences in social class.