What is dengue fever ?
Dengue Fever and Dengue Haemorrhagic Fever (a more severe form) are the most common mosquito-borne viral diseases in the world. Dengue Fever is an illness caused by infection with a virus transmitted by the Aedes mosquito. There are four types of this virus (serotypes 1 to 4) which can infect you.
Dengue Fever is spread though the bite of the Aedes Mosquito
Lifecycle of Aedes Mosquito
Fast facts about the mosquito
- Only the female aedes mosquito bites as it needs the protein in blood to develop its eggs.
- The mosquito becomes infective approximately 7 days after it has bitten a person carrying the virus. This is the extrinsic incubation period, during which time the virus replicates in the mosquito and reaches the salivary glands.
- Peak biting is at dawn and dusk.
- The average lifespan of an Aedes mosquito in Nature is 2 weeks
- The mosquito can lay eggs about 3 times in its lifetime, and about 100 eggs are produced each time.
- The eggs can lie dormant in dry conditions for up to about 9 months, after which they can hatch if exposed to favourable conditions, i.e. water and food
|
No comments:
Post a Comment