West Nile Virus in Overwintering Culex Mosquitoes, New York City, 2000
Author Information
Author(s): Roger S. Nasci, Harry M. Savage, Dennis J. White, James R. Miller, Bruce C. Cropp, Marvin S. Godsey, Amy J. Kerst, Paul Bennett, Kristy Gottfried, Robert S. Lanciotti
Primary Institution: Centers for Disease Control and Prevention
Hypothesis
Can West Nile virus persist in overwintering mosquitoes in New York City?
Conclusion
West Nile virus persisted in overwintering Culex pipiens mosquitoes in New York City, suggesting it could reestablish transmission in the spring.
Supporting Evidence
- 2,383 adult mosquitoes were collected, with 2,380 identified as Culex.
- Live West Nile virus was isolated from one pool of overwintering mosquitoes.
- WN viral RNA was detected in three pools of mosquitoes.
Takeaway
Scientists found that some mosquitoes in New York City can carry a virus during the winter, which means the virus can come back in the spring.
Methodology
Adult mosquitoes were collected from various overwintering sites and tested for West Nile virus using cell culture and RT-PCR.
Limitations
The study's findings may not apply to all mosquito species or regions, and the exact mechanism of virus persistence is unclear.
Want to read the original?
Access the complete publication on the publisher's website