Just thought I would share as I was very surprised and not sure how I feel about this!
Just went to the travel clinic at my GP surgery this afternoon expecting to get a prescription for Malarone for my forthcoming holiday to Siem Reap and was told I don't need it and that the most up to date travel advice that she was receiving was that anti Malaria drugs were not needed if you were only planning on staying in Siem Reap and visiting the Temples. Apparently anti malarias were prescribed for this area up to three years ago -but she said that as they had withdrawn this advice they must have decided it was not necessary at the moment. She did however say that we were probably at greater risk of catching Dengue Fever than Malaria. This goes against everything I was expecting.