H5N5 virus transmission is driven by repeated cross-Atlantic introductions and transmission among high latitude seabirds
Clara R. Malekshahi, Nicole St. Clair Knobloch, Alvin Crespo Bellido, Alexa D. Simulynas, Stephanie Goya, Leigh Papalambros, William J. Fitzsimmons, Alexander L. Greninger, Adam S. Lauring, Jonathan A. Runstadler, Martha I. Nelson, Wendy Blay Puryear, Louise H. Moncla
This study shows H5N5 viruses have been repeatedly introduced across the Atlantic by high latitude seabirds, with more frequent introductions in fall and spring, and a distinct ecology from H5N1.
bioRxiv · Oct 31, 2026 · PreprintEvolutionary Biology