Which among the following is responsible for the transmission of dengue and chikungunya ?

Aedes mosquitoes

The correct answer is Option (4) -Aedes mosquitoes

Widespread incidences of the vector-borne diseases like dengue and chikungunya in many parts of india are transmitted by Aedes mosquitoes.The most important measure is to control or eliminate the vectors and their breeding places. This can be achieved by avoiding stagnation of water in and around residential areas, regular cleaning of household coolers, use of mosquito nets, introducing fishes like Gambusia in ponds that feed on mosquito larvae, spraying of insecticides in ditches, drainage areas and swamps, etc. In addition, doors and windows should be provided with wire mesh to prevent the entry of mosquitoes.

Houseflies and cockroaches are not involved in transmitting these diseases; they are more associated with the spread of bacterial infections.

Anopheles mosquitoes are responsible for transmitting malaria, not dengue or chikungunya.