The other day I read an article about the new World Health Atlas - or diseases, I don't remember well - and placed malaria as one of the diseases that causes the highest number of deaths a year, counting those affected by millions and being the most children from countries of the so-called Third World.
When you travel through minimally jungle tropical areas, Malaria is one of the main concerns for the traveler, a disease that is tried to fight but for which there is no definitive cure due to the ease with which the virus that causes it mutates.
Dengue or the simple discomfort of having your body covered in mosquito bites are also good reasons to look for a good repellent when you travel to hot areas. I remember that I took one with the smell of ammonia that the mosquitoes were not repelled, but yes, I was not even close to God! I also carried a small electrical device that emitted a small hum. I do not know if it was efficient because I slept with it on, spent the battery and went on to put another.
On the next trip - which I will start in November - I think I will give an opportunity to a device like this. A mosquito repellent that recharges with sunlight and you can take your shorts with a clip, swimsuit or whatever. It costs less than 9 Euros and it seems that it will keep the mosquitoes 1 or 2 meters away from your body. Anyone who has tried something like that and can comment if it works?