Which mosquito species is known to transmit LaCrosse encephalitis?

Aedes triseriatus is recognized as the key mosquito species responsible for transmitting LaCrosse encephalitis, primarily in rural and wooded areas, particularly in the eastern United States. This species is a principal vector of the LaCrosse virus, which predominantly infects small mammals, such as squirrels and chipmunks, which serve as the reservoir hosts for the virus. Humans are incidental hosts and can become infected through the bite of an infected Aedes triseriatus mosquito.

The life cycle and feeding habits of Aedes triseriatus contribute to its effectiveness as a vector for LaCrosse encephalitis. This mosquito typically breeds in tree holes and similar natural containers, where standing water allows for breeding and development. Understanding the specific role of this species is crucial for implementing effective vector control measures and public health strategies aimed at reducing the incidence of LaCrosse encephalitis.