Chikungunya disease is a viral disease transmitted in humans by the bite of infected mosquitoes. Aedes aegypti mosquito (also called yellow fever mosquito) is the primary transmission agent of Chikungunya Virus. This is usually found in tropics and hence Chikungunya is predominantly seen in asian countries. In recent cases, another mosquito species named Aedes albopictus is found to be a carrier. Aedes aegypti bites during day time and hence day time mosquito bite is the main reason for transmission.
Presence of stagnated water in and around human inhabitation is one of the main causes of increased aedes mosquito population. This in turn causes a large number of mosquito bites leading to the rapid spread of Chikungunya virus.
http://www.chikungunya.in
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