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Tuesday, 17 July 2012

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Innovative methodology proposed to beat dengue

A Sri Lankan inventor proposed an innovative methodology to control the dengue epidemic effectively.

This cost-effective methodology can be implemented under two phases, and its results can be obtained in three weeks, inventor and Signati (Pvt) Ltd CEO Basil de Silva said. The main idea behind this methodology is to prevent all contacts by mosquitoes with dengue patients, so that the transmission of the disease from a dengue patient to another human can be stopped.

He said this is much less difficult to achieve than trying to eliminate all mosquitoes along with those carrying virus.

De Silva said dengue patients should be identified at the earliest possible stage and isolated from mosquitoes with repellents, nets, proper clothing etc until they are fully recovered (Approximately 21 days).

He was confident if this phase was successfully implemented the number of dengue cases would begin to dwindle.

De Silva also proposed a phase two in which a trap designed by him is introduced to isolate mosquito breeding. The proposed device is meant to trap mosquito eggs, larvae and pupae, preventing mosquitoes escaping to open space.

He said it is aimed at eliminating or reducing the number of mosquitoes.

This device is made of eight or seven sheets of glass glued together in a design which enables mosquito eggs to slide on the inclined piece of glass sheet through a small opening to the bottom of the device. When the eggs develop into larvae and pupae their size will be too big for them to escape.

The adult mosquito will be prevented from escaping into the open, he said.

De Silva said fumigation and spraying insecticide would not completely destroy the mosquito population nor eradicate mosquito breeding places.

“Any surviving mosquito will invariably produce a new breed with a greater ability to survive and to cause greater harm to their victims. Then the situation becomes more challenging in the next stage,” he said.

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