Friend, your participation is very good, preventive medicine is really about preventing the manifestations of diseases and we know that when we visit a doctor who does not provide the necessary tools to maintain optimal health.
Well, you describe it as Animals that transmit diseases and therefore must be killed to avoid and prevent the spread of these diseases!
These humid climates are responsible for diseases such as malaria, the good thing is that if you go to the hospital at the first symptoms, they will indicate the appropriate treatment to cure it!
Take care of your health!!

Greetings