How are Chikungunya and Dengue fever transmitted from tiger mosquitoes?
The Chikungunya or Dengue virus will be transmitted to a tiger mosquito when that mosquito bites a person that is infected with that virus. The virus begins to proliferate in the mosquito. After roughly 10 days, the virus can be transmitted to a person that is bit by the infected mosquito. If the mosquito is killed within this time period then the disease cannot be passed on.