Unexpected hiding places of mosquitoes that transmit dengue fever

(Baonghean.vn) - Flower vases in the house and milk cartons left on the street corner after a rainstorm can also become breeding grounds for Aedes mosquitoes, which are causing 239 people in Nghe An to contract dengue fever.

What is the life cycle of the Aedes aegypti mosquito?

In a favorable growing environment, after only about 10 - 15 days, mosquito eggs will develop into larvae, pupae, young mosquitoes and become adult mosquitoes.

Female mosquitoes, after hatching from eggs, become adult mosquitoes after only about 5 - 8 days and can suck blood (bite) from people and find places to lay eggs in water containers.

After 1 - 3 days, the eggs will hatch into larvae, and from larvae to pupae it takes about 5 - 8 days.

About 2 - 3 days later, the larvae will become young mosquitoes, and continue the development cycle into adult mosquitoes, lay eggs, eggs develop into larvae, larvae, mosquitoes.

Hiding places of mosquitoes that transmit dengue fever

Why do dengue mosquitoes still survive after being sprayed with chemicals?

The chemical used for spraying is Delta Metrin, a top-of-the-line insecticide recommended by the World Health Organization (WHO) for the prevention of mosquito-borne diseases, including dengue fever. When it arrived in Vietnam, this insecticide was rigorously evaluated by the Ministry of Health, a panel of experts and scientists for its effectiveness and safety before being put into use.

"The reason for the appearance of mosquitoes after spraying, Dr. Duong said, is that the mosquitoes have just hatched from larvae that still exist in households from before. The larvae only need a few days, or even a few hours to hatch into mosquitoes. They continue to fly out, so the chemical spraying measure only treats the surface, the radical, effective, long-term solution is to destroy the larvae," emphasized the representative of the Central Institute of Hygiene and Epidemiology, Tran Thanh Duong.

Measures to completely kill mosquito larvae

Regularly clean, cover and change the water weekly in all containers that contain drinking water such as tanks, jars, pots, urns, etc.

Put fish in all water containers to eat mosquito larvae.

Put salt in a bowl on the cupboard, put damp sand in a vase… to prevent mosquitoes from breeding.

Clean the environment around the house: clear bushes, unclog drains, fill holes and puddles, etc.

Collect, destroy, bury, and overturn waste tools and water containers around the house and outdoors such as: tree holes, water jars, water troughs for poultry and livestock, waste tools containing water such as cans, cans, bottles, broken tires, etc.

Eliminate natural water reservoirs such as tree holes, leaf crevices, bamboo roots...

Treat mosquito larvae nests in construction works with basements that easily accumulate water, garbage on the ground, along canals, where rainwater can accumulate, rockery, ornamental pots containing water, vacant lots, fenced but not yet built, lots of garbage, grass causing water to accumulate...

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