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Molecular phylogenetic analysis of Cysticercus ovis from Egypt based on MT-CO1 gene sequences / Análise filogenética molecular de Cysticercus ovis do Egito com base nas sequências do gene MT-CO1
Abdelaziz, Amer Ragheb; Khalafalla, Reda Elbastawisy; Hassan, Amal Abbas Abdelrahman; Elmahallawy, Ehab Kotb; Almuzaini, Abdulaziz Mohammed.
  • Abdelaziz, Amer Ragheb; Sohag University. Faculty of Veterinary Medicine. Department of Parasitology. Sohag. EG
  • Khalafalla, Reda Elbastawisy; Kafrelsheikh University. Faculty of Veterinary Medicine. Department of Parasitology. Kafr El-Sheikh. EG
  • Hassan, Amal Abbas Abdelrahman; Damanhur University. Faculty of Science. Department of Biology. Damanhur. EG
  • Elmahallawy, Ehab Kotb; Sohag University. Faculty of Veterinary Medicine. Department of Zoonotic Diseases. Sohag. EG
  • Almuzaini, Abdulaziz Mohammed; Qassim University. College of Agriculture and Veterinary Medicine. Department of Veterinary Medicine. Buraydah. SA
Rev. bras. parasitol. vet ; 28(2): 258-265, Apr.-June 2019. tab, graf
Article in English | LILACS | ID: biblio-1013739
ABSTRACT
Abstract Cysticercus ovis or sheep measles is the larval stage of Taenia ovis, which is the intestinal tapeworm of dogs. It is found in the cardiac and skeletal muscles of sheep and can be the cause of partial or total condemnation of carcasses at abattoirs. The aim of the current work was to determine the prevalence of C. ovis among sheep in Upper Egypt and to present the molecular and phylogenetic analysis of this using the amplified Mitochondrial Cytochrome Oxidase subunit 1 (MT-CO1) gene. A total of 1885 sheep slaughtered at local abattoirs of 4 different governorates of Upper Egypt (Asuit, Sohag, Qena and Aswan) were carefully examined for C. ovis. The overall prevalence of infection was 2.02%. The highest rate of infection was observed in adult animals over 4 years of age (44.73%). There was no significant effect of animal sex on infection rates. The phylogenic analysis of C. ovis Egyptian isolates showed very close similarity to the New Zealand isolate (AB731675). This is the first report showing the genetic analysis of C. ovis in Egypt, which provides a very powerful tool for taxonomy and definitive diagnosis of C. ovis, which could be helpful for preventive and control programs.
RESUMO
Resumo Cysticercus ovis "sheep measles" é o estágio larval da Taenia ovis, encontrada nos músculos de carneiros, causado pela ingestão de ovos de Taenia ovis, parasita de cães. O objetivo do presente trabalho foi determinar a prevalência de C. ovis entre ovinos no Alto Egito e apresentar as análises moleculares e filogenéticas, utilizando o gene da subunidade mitocondrial citocromo-oxidase amplificada 1 (MT-CO1). Um total de 1885 ovinos abatidos em matadouros locais de 4 províncias diferentes do Alto Egito (Asuit, Sohag, Qena e Aswan) foram cuidadosamente examinados para C. ovis. A prevalência geral de infecção foi de 2,02%. A maior taxa de infecção foi observada em animais adultos com mais de 4 anos de idade (44,73%). Não houve efeito significativo do sexo nas taxas de infecção. A análise filogenética de isolados egípcios de C. ovis mostrou uma similaridade muito próxima ao isolado da Nova Zelândia (AB731675). Este é o primeiro relato mostrando a análise genética de C. ovis no Egito, fornecendo uma ferramenta para taxonomia e diagnóstico definitivo de C. ovis, podendo ser útil para programas preventivo e de controle.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Sheep Diseases / Cysticercosis / Sheep / Electron Transport Complex IV / Cysticercus Type of study: Etiology study / Prevalence study / Risk factors Limits: Animals Country/Region as subject: Africa Language: English Journal: Rev. bras. parasitol. vet Journal subject: Veterinary Medicine / Parasitology Year: 2019 Type: Article Affiliation country: Egypt / Saudi Arabia Institution/Affiliation country: Damanhur University/EG / Kafrelsheikh University/EG / Qassim University/SA / Sohag University/EG

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Full text: Available Index: LILACS (Americas) Main subject: Sheep Diseases / Cysticercosis / Sheep / Electron Transport Complex IV / Cysticercus Type of study: Etiology study / Prevalence study / Risk factors Limits: Animals Country/Region as subject: Africa Language: English Journal: Rev. bras. parasitol. vet Journal subject: Veterinary Medicine / Parasitology Year: 2019 Type: Article Affiliation country: Egypt / Saudi Arabia Institution/Affiliation country: Damanhur University/EG / Kafrelsheikh University/EG / Qassim University/SA / Sohag University/EG