In a BugBitten blog post, Krisztian Magori discusses what we know about the impact of climate change on West Nile virus transmission, and all the things we still need to learn about this problem.
Climate change is all around us, from heatwaves and wildfires in Canada, to a typhoon in the Western Pacific. In addition to increasing the frequency and magnitude of extreme weather events, climate change is also documented to increase the range and frequency of vector-borne diseases.
This paper does a good job of summarizing the ecology of West Nile virus, both in Europe and in the United States, where different vector and host species fill in their roles in the ecology of this arbovirus. It s a treasure-trove of relevant citations for those wanting to follow up on the details, including a paper that I coauthored.
The migration pattern of avian hosts of West Nile virus could be impacted by climate change. Climate change-induced changes have already been observed in the migration patterns of several avian host species, including the timing, migration routes, abundance, and composition of avian assemblages. Long-distance migratory birds tend to arrive to temperate regions earlier in the spring.
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