Photomicrographs from a Bald Eagle (Haliaeetus leucocephalus) with highly pathogenic avian influenza found dead in Wisconsin
Detailed Description
Photomicrographs from a Bald Eagle (Haliaeetus leucocephalus) with highly pathogenic avian influenza found dead in Wisconsin, USA. (A) In the brain, there is a region in the cerebrum with small perivascular cuffs of mononuclear cells and rare heterophils (arrow), scattered foci of gliosis (*), and rare acutely necrotic neurons (inset). H&E stain. (B) The pancreas has large areas of acute necrosis (N) effacing the parenchyma. H&E stain. (C) The kidneys have small foci of acute necrosis (N) effacing the parenchyma. H&E stain. (D) The myofibers of the heart are multifocally replaced by degenerate mononuclear cells (*). H&E stain.
Sources/Usage
Public Domain.
Related
Distribution of Highly Pathogenic Avian Influenza in North America, 2021/2022
The first 2021/2022 detection of Eurasian strain (EA) highly pathogenic avian influenza (HPAI) H5N1 in North America occurred in December 2021 in Newfoundland and Labrador, Canada. Subsequently, HPAI EA H5 and EA H5N1 viruses have been confirmed in wild birds, backyard flocks, commercial poultry facilities, and wild mammals in both Canada and the United States. This HPAI distribution map will be...
Avian Influenza Surveillance
The USGS National Wildlife Health Center (NWHC) conducts surveillance in wild birds to facilitate early detection and situational awareness for high consequence pathogens, including highly pathogenic avian influenza (HPAI) viruses.
Avian Influenza
Avian influenza is a viral disease caused by various strains of avian influenza viruses that can be classified as low pathogenic avian influenza (LPAI) or highly pathogenic avian influenza (HPAI). It remains a global disease with potential high consequence with the potential to threaten wildlife, agriculture, and human health.
Related
Distribution of Highly Pathogenic Avian Influenza in North America, 2021/2022
The first 2021/2022 detection of Eurasian strain (EA) highly pathogenic avian influenza (HPAI) H5N1 in North America occurred in December 2021 in Newfoundland and Labrador, Canada. Subsequently, HPAI EA H5 and EA H5N1 viruses have been confirmed in wild birds, backyard flocks, commercial poultry facilities, and wild mammals in both Canada and the United States. This HPAI distribution map will be...
Avian Influenza Surveillance
The USGS National Wildlife Health Center (NWHC) conducts surveillance in wild birds to facilitate early detection and situational awareness for high consequence pathogens, including highly pathogenic avian influenza (HPAI) viruses.
Avian Influenza
Avian influenza is a viral disease caused by various strains of avian influenza viruses that can be classified as low pathogenic avian influenza (LPAI) or highly pathogenic avian influenza (HPAI). It remains a global disease with potential high consequence with the potential to threaten wildlife, agriculture, and human health.