“Whilst in Bali early June we heard of 3 incidents that had happened. This was the most recent.
Basically an Irishman and friend were at the Bounty Bar (not the hotel) having a few drinks they went to the toilet and when they got back to the bar there was a line up of shots for them. The irishman sipped his and his friend knocked his back. The irishman whilst sipping his looked over at his friend and saw him pass out cold on the floor, he got his friend into a taxi and that is the last thing he remembers. He woke up on Kuta beach up to his neck in water stark naked with all his money gone – just under 1000 english pounds – passport, etc.”
It sounds as though malaria is still possible, even in Bali: