Malaria: Malaria is an infectious disease, which is not new to India or the tropical regions of Asia. It is a disease, which still manages to cause about 500 million infections and 2 million deaths annually worldwide. The danger of malaria is more during the monsoon season due to breeding of mosquitoes and when the water starts receeding but some of it remains stagnated. The problem is worst in cities with poor drainage systems. Find out how you can prevent yourself from malaria.