Mass mortality events in the sub-Antarctic Indian Ocean caused by long-distance circumpolar spread of highly pathogenic avian influenza H5N1 clade 2.3.4.4b
Augustin Clessin, François‐Xavier Briand, J Tornos, Mathilde Lejeune, Camille De Pasquale, Romain Fischer, Florent Souchaud, Edouard Hirchaud, Tristan Bralet, Christophe Guinet, Clive R. McMahon, Béatrice Grasland, Guy Baele, Thierry Boulinier
This study reports the arrival of HPAI H5N1 clade 2.3.4.4b in sub-Antarctic Indian Ocean islands, causing mass mortality in seals and birds, and identifies independent introductions from South Georgia.
bioRxiv · Feb 25, 2025 · PreprintMicrobiology