[domifletch]

I had never problem with bottles of water, it's safe.

About malaria, I met a couple of French pepole 3 years ago who had taken Larian against this disease. It was hell for them. The secondary effects are really bad and can make us depressive. I remember they felt no good at all and the woman was crying for nothing.
As Nicke says, the is no risk if you dont go to the jungle where there are too much mosquitoes.