Abstract | Introduction: The control of Newcastle disease virus (NDV) infection depends solely on vaccination which in most cases is not sufficient to restrain the consequences of such a highly evolving viral disease. Finding out substances for preparing an efficient anti-ND drug would be of high value. n- Docosanol is a saturated fatty alcohol with an inhibitory effect against many enveloped viruses. In this study, we evaluated the therapeutic effect of n- docosanol on NDV infection and shedding in chickens. Methods: Chickens infected with a highly virulent NDV were treated with low to high concentrations of n- docosanol (20, 40, and 60 mg/kg body weight) for 4-successive days, once they showed the disease symptoms. Survival and curative rates, virus load, histopathological scoring, and virus shedding were defined. Results: Symptoms development was found to discontinue 24-72 hours post-treatment. Survival rate in the NDV-infected chickens raised 37.4-53.2% after the treatment. n- Docosanol treatment was also found to significantly reduce virus load in the digestive (26.2-33.9%), respiratory (38.3-63%), nervous (26.7-51.1%), and lymphatic (16.4-29.1%) tissues. Histopathological scoring of NDV lesions revealed prominent rescue effects on the histology of different tissues. Importantly, n- docosanol treatment significantly reduced virus shedding in oropharyngeal discharge and feces thereby allowing the restriction of NDV spread. Conclusion:
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Authors | Ahmed Orabi, Ashraf Hussein, Ayman A Saleh, Ayman M Megahed, Mohamed Metwally, Hassan Moeini, Aya Sh Metwally |
Journal | Frontiers in microbiology
(Front Microbiol)
Vol. 13
Pg. 1049037
( 2022)
ISSN: 1664-302X [Print] Switzerland |
PMID | 36483200
(Publication Type: Journal Article)
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Copyright | Copyright © 2022 Orabi, Hussein, Saleh, Megahed, Metwally, Moeini and Metwally. |