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.
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