Abstract
Pathological and Ultrastructural Characteristics of Newcastle and Pox Diseases in Naturally Infected Pigeons in Egypt
Highlights
Newcastle disease (ND) is a viral disease affecting over 240 species of birds including pigeons, it considered the most important disease affecting pigeons (Bulbule et al, 2015)
Clinical findings and postmortem lesions reported for ND and PD During 2019-2021, a total of 456 and 320 pigeons showed clinical signs suspected to be infected with Newcastle disease (ND) and pox disease (PD), respectively at ElGharbia and El-Dakahlia
The age of the pigeons ranged between 15 days and 3 years
Summary
Hamed, Mohamed El-Tholoth, Iman Ibrahim, Ahmed F. Meningoencephalitis, tracheitis, necrotizing pneumonia, tubulointerstitial nephritis and hyperplasia of gut associated lymphoid tissue were seen in pigeons infected with NDV. Hypertrophy and hyperplasia of epidermal stratified squamous epithelium with dense eosinophilic intracytoplasmic inclusion bodies (ICIB) were observed in PD infected pigeons. TEM of infected brain tissue with NDV showed hypertrophied neuron with numerous electron dense granules, dilated mitochondria, and rough endoplasmic reticulum. TEM of infected epidermal cells with avipoxvirus showed swollen cells with intracytoplasmic electron lucent inclusion bodies containing cellular debris. Keywords | Newcastle disease virus, Pox disease virus, Pigeons, Histopathology, Immunohistochemistry, Transmission electron microscopy. Com Citation | Shalaby SM, Awadin WF, Hamed MF, El-Tholoth M, Ibrahim I, El-Shaieb AF (2021). Pathological and ultrastructural characteristics of Newcastle and pox diseases in naturally infected pigeons in Egypt.
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