HPAI H5N1 infection in common cranes, Serbia
A new study focuses on the natural infection of common cranes (Grus grus) with the highly pathogenic avian influenza virus (HPAIV) subtype H5N1 in Serbia.
The late autumn epizootic of HPAIV in 2023 resulted in substantial mortality among the migratory population of these cranes, highlighting the vulnerability of this species to viral infections. The research aims to investigate the pathological effects of HPAIV on common cranes, assess the implications for wildlife health, and emphasize the importance of surveillance and conservation efforts for these migratory birds.
The study involved the collection and examination of 14 common crane carcasses that were part of a passive surveillance program for avian influenza in Serbia. The researchers conducted postmortem evaluations, virological testing, and histopathological analyses to determine the cause of death and the impact of HPAIV on the affected birds. The findings revealed significant pathological changes associated with HPAIV infection, including lesions in various organs and neurological signs.
The study underscores the role of migratory cranes as potential bio-sentinels for HPAI in wildlife and highlights the need for enhanced monitoring and conservation strategies to protect crane populations from future outbreaks.
See: Avian influenza kills thousands of cranes in Israel
