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Fig. 1 | BMC Veterinary Research

Fig. 1

From: Characterization and pathogenicity of fowl adenovirus serotype 4 isolated from eastern China

Fig. 1

Cytopathogenic effects of FAdV-4 viruses in CEK cells. a The strain HN purified virus was passaged in 7 days - old SPF chicken embryonated eggs three times and then purified in CEK cells by plaque assay when typical CPE formation (bar = 100 μm). b Electron microscope of strain HN. The virus particles were observed as regular hexahedrons. The diameter was approximately 80–100 nm, which were shown as crystal arrangement in the cytoplasm of CEK cells (bar = 200 nm)

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