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Magouz A, El-Kon I, Raya-Álvarez E, Khaled E, Alkhalefa N, Alhegaili AS, El-khadragy MF, Agil A, Elmahallawy EK. Molecular typing of canine parvovirus type 2 by VP2 gene sequencing and restriction fragment length polymorphism in affected dogs from Egypt. Front Microbiol 2023; 14:1254060. [PMID: 38143867 PMCID: PMC10740174 DOI: 10.3389/fmicb.2023.1254060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 11/16/2023] [Indexed: 12/26/2023] Open
Abstract
Introduction Canine parvovirus-2 (CPV-2) is one of the most common infectious diseases in dogs characterized by severe gastroenteritis, vomiting, and bloody diarrhea. Little information is available about this topic in Egypt, particularly in the Delta region. This study reports the prevalence and molecular analysis of CPV-2 variants collected from El-Gharbia and Kafrelsheikh governorates in the Delta of Egypt. Methods In this study, 320 rectal swabs were collected from infected domestic dogs from two districts in delta Egypt. The samples were investigated by rapid immunochromatographic test and polymerase chain reaction for detection the prevalence of CPV-2 variants. The genetic characterization was performed using restriction fragment length polymorphism (RFLP) analysis and partial VP2 gene sequence. Results and discussion The viral antigen was detected in (264/320, 82.5%) of samples by IC test, while PCR was found more sensitive by detecting (272/320, 85%) positive samples. The RFLP technique using MboII restriction enzyme was successfully used for the differentiation of CPV-2c antigenic variants from CPV-2a/2b strains. Interestingly, the molecular and phylogenetic analysis revealed that both CPV-2a and CPV-2c are circulating in the study area. Deduced amino acid sequence analysis showed changes at residue (N426E) and residue (T440A).: Our results indicated that CPV-2 is prevalent among dogs in Egypt, and therefore further molecular and epidemiological studies of CPV-2 are warranted.
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Affiliation(s)
- Asmaa Magouz
- Department of Virology, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Ismail El-Kon
- Department of Gynaecology, Obstetrics and Artificial Insemination, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh, Egypt
| | | | - Enas Khaled
- Department of Virology, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Noura Alkhalefa
- Department of Virology, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Alaa S. Alhegaili
- Department of Medical Laboratory, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Alkharj, Saudi Arabia
| | - Manal F. El-khadragy
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Ahmad Agil
- Department of Pharmacology, Biohealth Institute Granada (IBs Granada) and Neuroscience Institute, School of Medicine, University of Granada, Granada, Spain
| | - Ehab Kotb Elmahallawy
- Departamento de Sanidad Animal, Grupo de Investigación en Sanidad Animal y Zoonosis (GISAZ), Facultad de Veterinaria, Universidad de Córdoba, Córdoba, Spain
- Department of Zoonoses, Faculty of Veterinary Medicine, Sohag University, Sohag, Egypt
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Dema A, Ganji VK, Yella NR, Putty K. A novel one-step amplification refractory mutation system PCR (ARMS-PCR) for differentiation of canine parvovirus-2 variants. Virus Genes 2021; 57:426-433. [PMID: 34255270 DOI: 10.1007/s11262-021-01861-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 07/06/2021] [Indexed: 11/30/2022]
Abstract
Enteritis caused by CPV-2 antigenic variants (CPV-2a, 2b, and 2c) is frequently reported in dogs worldwide leading to significant morbidity and mortality. Here, we describe about a simple, single-step, ARMS-PCR strategy targeting the mutant 426 amino acid of VP2 to differentiate CPV-2 antigenic types. A total of 150 fecal samples were subjected to ARMS-PCR of which 18 were typed as CPV-2a, 79 were typed as CPV-2b, and 6 were typed as CPV-2c. The ARMS-PCR results were validated by randomly sequencing partial VP2 gene of 14 samples. Phylogenetic analysis of partial VP2 gene sequencing of each of the CPV-2 variants revealed that CPV-2a and CPV-2b isolates formed a separate clade of Indian lineage, while CPV-2c shared common evolutionary origin with Asian lineage. The developed technique is first of its kind, one-step, rapid, sequencing independent method for typing of CPV-2 antigenic variants.
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Affiliation(s)
- Anusha Dema
- Department of Veterinary Biotechnology, College of Veterinary Science, PVNRTVU, Rajendranagar, Hyderabad, 500030, India
| | - Vishweshwar Kumar Ganji
- Department of Veterinary Biotechnology, College of Veterinary Science, PVNRTVU, Rajendranagar, Hyderabad, 500030, India
| | - Narasimha Reddy Yella
- Department of Veterinary Microbiology, College of Veterinary Science, PVNRTVU, Rajendranagar, Hyderabad, 500030, India
| | - Kalyani Putty
- Department of Veterinary Biotechnology, College of Veterinary Science, PVNRTVU, Rajendranagar, Hyderabad, 500030, India.
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Singh P, Kaur G, Chandra M, Dwivedi PN. Prevalence and molecular characterization of canine parvovirus. Vet World 2021; 14:603-606. [PMID: 33935404 PMCID: PMC8076476 DOI: 10.14202/vetworld.2021.603-606] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 01/21/2021] [Indexed: 11/30/2022] Open
Abstract
Background and Aim: Canine parvovirus (CPV) belonging to family Parvoviridae causes hemorrhagic gastroenteritis in dogs and heavy mortality in young dogs. The virus has three structural (VP1, VP2 and VP3) and two non-structural proteins (NS1 and NS2), VP2 being highly immunogenic. This study aims to study molecular epidemiology of CPV by sequence analysis of VP2 gene to determine the prevailing antigenic type(s) in the northern regions of India. Materials and Methods: A total of 118 rectal swabs collected from dogs exhibiting clinical signs of CPV infection were processed for the isolation of DNA and subjected to polymerase chain reaction (PCR) and nested PCR (NPCR). A total of 13 NPCR products selected randomly were subjected to sequence analysis of VP2 gene. Results: The percent positivity of CPV was found 28% and 70% by PCR and NPCR, respectively. Dogs with vaccination history against CPV too were found positive with a percent positivity of 24.10%. Gene sequencing and phylogenetic analysis of VP2 gene from these isolates revealed that most samples formed a clade with CPV-2a isolates. Conclusion: Sequence analysis and phylogenetic analysis of VP2 gene in the studied regions of northern India revealed that CPV-2a was the most prevalent antigenic type.
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Affiliation(s)
- Parikshit Singh
- Department of Veterinary Microbiology, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
| | - Gurpreet Kaur
- Department of Veterinary Microbiology, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
| | - Mudit Chandra
- Department of Veterinary Microbiology, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
| | - P N Dwivedi
- Department of Veterinary Microbiology, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
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