About mosquitoes in Malaysia and Singapore.

There are very few people in Singapore, so you have no personal experience in 1 building. I have been to both places, where I studied.

There are more mosquitoes in Malaysia, depending on what you think. If you go to that small forest or something, (there is no forest in Singapore, so I won't talk about it here. There are many people in the small forest in Malaysia. Once I went to see fireflies, and there were so many people, as if there were so many fireflies. If you stay in a hotel or something, you don't need to bring a mosquito net at all (this is only for the city, I can't guarantee that you will go to a hotel by the sea), so you don't have to worry about anything in the city.