This webcast is on mosquito and vector borne disease, what are its effects and why it is important to take precaution. It also explains what is the major vector borne disease seen nowadays in Delhi and how can a doctor identify all the dengue cases whether it is a suspect case or confirmed case, what are the procedure required to control dengue and why community participation is important for its control in effective way. Further, it explains why doctors should join in the war to fight against dengue and what all checks should be done by a doctor on his patients, how training plays a important role and should be given to every doctor and in every hospital. We also get to know precautionary measures for dengue and how can we protect our surrounding persons from getting infected if any house is found dengue positive.