Encephalitozoonosis in 2 South American Fur Seal (Arctocephalus australis) Pups

Seguel, M.; Howerth, E. W.; Ritter, J.; Paredes, E.; Colegrove, K.; Gottdenker, N.

doi:10.1177/0300985814551424

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Encephalitozoonosis in 2 South American Fur Seal (Arctocephalus australis) Pups

Published Date:

Sep 23 2014

Publisher's site:

http://dx.doi.org/10.1177/0300985814551424 New Site Icon

Source:

Vet Pathol. 52(4):720-723.

[PDF-385.92 KB]

Details:

Personal Authors:

Seguel, M. ; Howerth, E. W. ; Ritter, J. ; Paredes, E. ; Colegrove, K. ; ... More ▼

Keywords:

[+]

Pubmed ID:

25248519

Pubmed Central ID:

PMC4627481

Description:

Cerebral and disseminated encephalitozoonosis was diagnosed by histopathology, electron microscopy, and immunohistochemistry in 2 free-ranging South American fur seal pups found dead at Guafo Island (43°33'S 74°49'W) in southern Chile. In the brain, lesions were characterized by random foci of necrosis with large numbers of macrophages containing numerous microsporidial organisms within parasitophorous vacuoles. In addition, occasional histiocytes loaded with numerous mature and immature microsporidia spores consistent with Encephalitozoon sp were observed in pulmonary alveolar septa, splenic red pulp, glomerular capillaries, and proximal renal tubules by Gram and immunohistochemical stains. To our knowledge, microsporidial infection in a marine mammal species has not been previously reported.

Document Type:

Journal Article

Collection(s):

CDC Public Access

Funding:

CC999999/Intramural CDC HHS/United States

Supporting Files:

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