West Nile Virus Vector Competency of Culex quinquefasciatus Mosquitoes in the Galápagos Islands

Galápagos mosquitoes, specifically Culex quinquefasciatus, are competent vectors for West Nile virus (WNV), posing potential risks to the islands' fragile ecosystems. Research revealed that these mosquitoes can transmit WNV with infection rates peaking at 59% and transmission rates at 44%, particularly after 28 days of exposure. Temperature influenced infection rates but not transmission efficiency, while no vertical transmission was detected. The study highlights the need for vigilance in controlling this mosquito population to mitigate risks to both wildlife and public health.

Eastwood, G., Kramer, L. D., Goodman, S. J., & Cunningham, A. A. (2011). West Nile Virus Vector Competency of Culex quinquefasciatus Mosquitoes in the Galápagos Islands. The American Society of Tropical Medicine and Hygiene, 85(3), 426–433. https://doi.org/10.4269/ajtmh.2011.10-0739