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Volume 14, Number 3—March 2008

Dispatch

Hemagglutinating Encephalomyelitis Coronavirus Infection in Pigs, Argentina

Maria A. Quiroga*Comments to Author , Javier Cappuccio*, Pablo Piñeyro*, Walter Basso*, Gastón Moré*, Mariana Kienast†, Sergio Schonfeld‡, José L. Cáncer‡, Sandra Arauz*, María E. Pintos*, Mariana Nanni†, Mariana Machuca*, Norio Hirano§, and Carlos J. Perfumo*
Author affiliations: *Universidad Nacional de la Plata, La Plata, Argentina; †Centro de Investigaciones en Ciencias Veterinarias, Castelar, Argentina; ‡Private practice, Roque Perez, Argentina; §Iwate University, Morioka, Japan;

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Figure 1

A) Nursery piglets showing clinical signs compatible with porcine hemagglutinating encephalomyelitis coronavirus (PHE-CoV). Nonaffected pigs of the same age are also shown. B) Muscle layer of stomach from affected piglet showing perivascular cuffing (arrow); hematoxylin-eosin stain, magnification ×100. C) Brainstem from affected piglet showing satellitosis (arrows) and gliosis; hematoxylin-eosin stain, magnification x400. D) Brainstem from affected piglet showing positive label of neuron perikarion (arrows); nitroblue-tetrazolium imunohistochemical stain, magnification x400.

Figure 1. A) Nursery piglets showing clinical signs compatible with porcine hemagglutinating encephalomyelitis coronavirus (PHE-CoV). Nonaffected pigs of the same age are also shown. B) Muscle layer of stomach from affected piglet showing perivascular cuffing (arrow); hematoxylin-eosin stain, magnification ×100. C) Brainstem from affected piglet showing satellitosis (arrows) and gliosis; hematoxylin-eosin stain, magnification x400. D) Brainstem from affected piglet showing positive label of neuron perikarion (arrows); nitroblue-tetrazolium imunohistochemical stain, magnification x400.

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