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Aedes aegypti life cycle


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Aedes aegypti life cycle
Female Aedes aegypti commonly lay eggs on the inner walls of artificial containers. When the containers fill with water, mosquito larvae hatch from the eggs. After developing through four larval stages, the larvae metamorphose into pupas. Like the larval stage, the pupal stage is also aquatic. After two days, a fully developed adult mosquito forms and breaks through the skin of the pupa. The adult mosquito can fly and has a terrestrial habitat.

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The dengue virus is spread through a human-to-mosquito-to-human cycle of transmission, with the mosquito <i>Aedes aegypti</i> as the primary vector. These mosquitoes live near humans in tropical and subtropical regions of the world. Female <i>Aedes aegypti</i> become dengue vectors after feeding on the blood of a person infected with the dengue virus. Infected mosquitoes continue to transmit dengue with each blood meal for the rest of their lives. <i>Aedes aegypti</i> have a complex life cycle that includes aquatic and terrestrial stages. These mosquitoes lay their eggs inside containers, and new <i>Aedes aegypti</i> hatch when the containers are filled with water. Dengue poses the greatest risk in highly populated regions with rainy seasons where there are large populations of <i>Aedes aegypti</i> with a high degree of contact between the mosquitoes and humans.

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