Sickness of any kind of Sickness like Maleria you really need to kill Mosquito and other Dirty and harming insects
the first thing a person must get is vaccine. this is to lessen the effect of said diseases. next, one must make sure that the environment (surroundings) are always clean, with things that may serve as breeding grounds for insects (mosquitoes, flies) eliminated. and to prepare things to eat one should always clean them thoroughly (food and cooking utensils).