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Arboviral Encephalitis

Arboviral Encephalitis

Arboviral encephalitis refers to brain inflammation caused by arthropod-borne viruses, particularly those transmitted through mosquito vectors. Among these, West Nile virus (WNV), a member of the Flaviviridae family, is a significant public health concern. WNV is an enveloped, positive-sense, single-stranded RNA virus. Human infection typically begins when an infected mosquito introduces the virus into the dermis during feeding. The primary transmission cycle involves birds as amplifying hosts...

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Related Experiment Video

Updated: Apr 18, 2026

Preparing Irradiated and Marked Male Aedes aegypti Mosquitoes for Release in an Operational Sterile Insect Technique Program

Preparing Irradiated and Marked Male Aedes aegypti Mosquitoes for Release in an Operational Sterile Insect Technique Program

Published on: March 12, 2021

The Arctic's growing mosquito problem.

Amanda M Koltz¹, Lauren E Culler²

¹Amanda M. Koltz is a member of the Department of Integrative Biology, University of Texas at Austin, Austin, TX, USA.

Science (New York, N.Y.)

|April 16, 2026

Summary

Mosquitoes have been detected in Iceland for the first time, signaling a significant ecological shift in the Arctic. This emergence highlights the urgent need for better arthropod monitoring to anticipate biological risks in the warming region.

Area of Science:

Arctic ecology
Invasive species biology
Climate change impacts

Background:

Iceland historically lacked mosquito populations, a unique status among Arctic nations.

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Last Updated: Apr 18, 2026

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Mosquitoes are prevalent throughout the Arctic, impacting wildlife and human populations.

Recent detection of mosquitoes in Iceland marks a departure from its previous status.