Mosquito bites are irritating - and can be fatal. Malaria and Dengue Fever are serious diseases carried by mosquitoes.
Phnom Penh and Siem Reap are defined as malarial areas with low rates of transmission while the rest of Cambodia should be considered as high risk malarial areas.
Dengue fever is prevalent especially in heavily populated areas. Insect protection measures should be taken throughout the day.
Because mosquitos breed in still standing water, in the wet season mosquito activity is increased. However mosquitoes may still be active in the dry season.