Research Article

Characterization of Pseudorabies Virus Associated with Severe Respiratory and Neuronal Signs in Old Pigs

Figure 1

Isolation and characterization of pseudorabies virus HeN21. (a) Damage of the tonsil of the pig that pseudorabies virus (PRV) HeN21 was isolated. (b) Damage of the lung of the pig that PRV HeN21 was isolated. (c) Morphological characteristics of PRV HeN21 under an electron microscope (bar = 100 nm).
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