Aedes mosquitoes are mainly diurnal. Avoiding stings is effective protection. No sting, no dengue fever.
As basic measures …
Wearing long, light-coloured, lightweight clothing and staying in mosquito-proof rooms is recommended. Air conditioning, closed windows or fly screens offer good protection. In addition, mosquito nets are particularly useful at night, especially in simple conditions. Nets made of synthetic materials (e.g. nylon) are much lighter and more space-saving than cotton nets, do not tend to mat and take on almost no foreign odours. A narrow mesh size of maximum 2mm, ideally 1.2mm, is important. It makes sense to use impregnated mosquito nets (e.g. with permethrin) or to impregnate them afterwards.
Chemical mosquito protection in the form of creams, sprays or gels (repellents) has an excellent effect with very good tolerability, but should always be applied in sufficient quantity according to the manufacturer’s instructions and in good time. Depending on the active ingredient, the protection lasts a maximum of 6 to 8 hours, whereby the duration of action can be significantly reduced, especially in high humidity, heavy sweating or stays in water. If repellents are used together with sunscreen or skin care products, the repellent should always be applied last.
Waterproofing clothes is a useful additional protection. Many products can also be used on pregnant women and young children. With a single impregnation, a protection duration of up to 4 weeks can be achieved against insects and also lasts after washing.