[quote=@SgtEasy]
<Snipped quote by Tip>

But malaria though. It is an interesting question to ask. Can magic cure cancer? Probably not but I'm just wondering.
[/quote]

On this topic, I'm pretty sure Pottermore has some information on that. If I remember correctly, magic can cure just about any Muggle disease. But magic diseases are much worse. Small-scale example might be Harry's arm in second year. A broken bone would have been easy to fix, having to regrow them was painful. The impression I get is that wizards can catch diseases but the magic in them fixes it, but there's probably some magical version of it that's much worse anyway.