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Molecular detection of mixed infection with peste des petits ruminants and retroviruses in Egyptian sheep and goats
Faculty
Veterinary Medicine
Year:
2023
Type of Publication:
ZU Hosted
Pages:
Authors:
Nader Maher Sobhy Yakoub
Staff Zu Site
Abstract In Staff Site
Journal:
Tropical Animal Health and Production Springer
Volume:
Keywords :
Molecular detection , mixed infection with peste
Abstract:
Peste des petits ruminants (PPR) is a contagious viral disease causing massive economic loss to animal industries in endemic countries including Egypt. Although a vaccine is available, coinfections can overwhelm the animal immune system and interfere with vaccine protection. Small ruminant retrovirus (SRR), including enzootic nasal tumor virus (ENTV) and Jaagsiekte sheep retrovirus (JSRV), is responsible for coinfections with PPR. Investigation of clinical cases in this study confirmed the presence of PPR virus by RT-PCR among four flocks. Sequence of five PPR amplicons revealed that all strains had 100% aa similarity and belonged to lineage IV. In addition, these strains had 98-99% nt similarity with all previous Egyptian and African strains from Sudan (MK371449) and Ethiopia (MK371449). Illumina sequencing of a representative sample showed a genome of 5753 nt compatible with ENT-2 virus with 98.42% similarity with the Chinese strain (MN564750.1). Four ORFs representing gag, pro, pol, and env genes were identified and annotated. Pro gene was highly stable while gag, pol, and env showed eight, two, and three aa differences with the reference strains. Sanger sequencing revealed that two amplicons were ENT-2 virus, and one was JSRV. ENT-2 sequences had 100% similarity with KU258870 and KU258871 reference strains while JSRV was 100% similar to the EF68031 reference strain. The phylogenetic tree showed a close relationship between the ENT of goats and the JSRV of sheep. This study highlights the complexity of PPR molecular epidemiology, with SRR that was not molecularly characterized previously in Egypt.
Author Related Publications
Nader Maher Sobhy Yakoub, " دراسة مقارنة للكفاءة المناعية لنوعين مختلفين من تحصين الحمى القلاعية فى الاغنام", لايوجد, 1900
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Nader Maher Sobhy Yakoub, "Detection and molecular characterization of astroviruses in turkeys", Springer, 2016
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Nader Maher Sobhy Yakoub, "Recent isolation of ovine herpesvirus2 from unusual symptomatic infection of sheep in Egypt", Marsland press, 2013
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Nader Maher Sobhy Yakoub, "Phylogenetic analysis of Egyptian foot and mouth disease virus endemic strains", Journal of American Science, 2014
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Nader Maher Sobhy Yakoub, "Comparative molecular characterization of bovine herpesvirus-1 strains from Egypt and the United States", Life Science Journal, 2014
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Department Related Publications
Ibrahim Mohamed Alie, "Rapid assessment of bovine colostrum quality: How reliable are transmission infrared spectroscopy and digital and optical refractometers?", ELSEVER, 2017
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Sobhi Elmaghawry Mohamed, "Ultrasonography as a diagnostic and prognostic tool for traumatic reticuloperititonitis in cattle", مجلة علمية محلية, 2009
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Nasser Zedan Abozaid Mohamed , "Sarcocystis hominis and other Sarcocystis species infecting cattle at Sharkia Province, Egypt", Egyptian Veterinary Medical Society of Parasitology Journal (EVMSPJ), 2013
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Nasser Zedan Abozaid Mohamed , "Epidemiological studies on Toxoplasmosis in small ruminants and equine in Dakahlia Governorate, Egypt.", Assiut Veterinary Medical Journal, 2015
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Nasser Zedan Abozaid Mohamed , "Cystic echinococcosis in donkeys in some localities of Egypt with experimental infection in dogs", Zagazig Veterinary Journal, 2012
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