What type of vectors transmit Eastern Equine Encephalitis?

The transmission of Eastern Equine Encephalitis (EEE) primarily involves bridge vectors, which are organisms that can transmit a pathogen between an enzootic cycle (typically involving wildlife) and a spillover host, such as humans or horses. In the case of EEE, mosquitoes serve as bridge vectors, particularly species like Culiseta melanura that can effectively transmit the virus from birds, the primary reservoir hosts, to other species.

Understanding the role of bridge vectors is crucial in the context of public health because their capacity to connect different animal populations means they play a significant role in the epidemiology of EEE and other zoonotic diseases. Identifying and controlling these vectors is important for disease prevention efforts. This distinction highlights the importance of effective mosquito control measures in areas where EEE is prevalent, especially during peak transmission seasons.