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Hyderabad: Chemical-resistant mosquitoes thrive

Large-scale efforts by government, public a must to control vector-borne diseases
Hyderabad: Increasing resistance to chemical sprays due to constant fogging and spraying exercises have made mosquitoes resistant, said experts on Wednesday, on World Mosquito Day.
Due to this factor, controlling the breeding of mosquitoes in lakes, open water sources and in agency areas is becoming very difficult. Paddy fields are also potent spots for mosquito breeding. In urban areas, clogged drains, stagnated water and plastics are proving to be new breeding grounds for mosquitoes.
Dr K. Narsimulu, professor of internal medicine at Gandhi Hospital said, “Our usage of water has increased without proper treatment for waste water. This has provided a conducive environment for the mosquitoes.”
While the population of mosquitoes has seen a swift rise, the methods of prevention of bites have also increased. Two rounds of spraying have been done and 200 villages have been identified in each district where the number of confirmed vector-borne diseases was high.
Dr P. Sambhasiva Rao, TS director of health, said, “Mosquitoes cause malaria, dengue, chikungunya and filariasis. The disease pattern of the last few years has shown us the sensitive regions and we are targeting them. Khammam, Adilabad, Warangal and some parts of Ranga Reddy districts have shown high incidence of vector-borne diseases.”
In AP, East and West Godavari, Guntur and Srikakulam have shown similar high incidence. Spraying is being done and over four lakh Gambusia fish are being released in lake and river waters in the districts.
Paediatrician Dr G. Kishan, said, “While better diagnostic facilities and awareness has brought down incidences of this disease, it does not mean the mosquito menace has been controlled. Large-scale efforts by the government and people, need to be taken up to bring this under control.
( Source : dc correspondent )
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