How has human activities helped spread malaria in southeast asia?

Question

How has human activities helped spread malaria in southeast asia?

Answer 1

Land pollution promotes the spread of malaria. Plastic bags or containers in landfill sites capture rain  water which easily heats up in the sun. This provides the perfect habitat for mosquito eggs to hatch into larvae.

Answer 2

Malaria is spread through blood, so there is no human activities that can spread it, maybe lots of mosquito's there is the reason.