I had a short 2 week trip through Laos last year..Vientiane up to LP and on up the river to Huay Xai...I didn't take any anti malarial drugs. I did't see many mosquitos and they don't seem to like me anyway. I'm going back in a couple of months and will visit the south this time entering from NE Thailand. Can anyone tell me of the risk level there? I intend to visit Champasak and the Bolavan Plateau.