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Hi @wolfie94 ,

These are very good questions and pertinent at this point in time.

An aedes mosquito becomes infected after it takes a blood meal from a dengue-infected person. It becomes infective after an extrinsic incubation period of 8 to 12 days. The mosquito then remains infective for the rest of its lifespan. 

When a person is bitten by an infective mosquito, they may develop symptoms after an intrinsic incubation period of 4 to 7 days (ranges from 3 to 14 days). This is what we usually call as incubation period. 

Notably, up to 75% of dengue infections are asymptomatic.

As always prevention is better than cure. Please Follow the 5 step mossie wipeout and let’s all do our part to reduce the transmission rate. 



Dr. Kannan R
space doctor