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Littérature scientifique sur le sujet « CPV-2 variants »

Auteur : Grafiati

Publié le 7 juin 2025

Mis à jour le 2 août 2025

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Articles de revues sur le sujet "CPV-2 variants"

Jantafong, Tippawan, Sakchai Ruenphet, Harold R. Garner, and Krit Ritthipichai. "Tracing the Genetic Evolution of Canine Parvovirus Type 2 (CPV-2) in Thailand." Pathogens 11, no. 12 (2022): 1460. http://dx.doi.org/10.3390/pathogens11121460.

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Canine parvovirus type 2 (CPV-2) is responsible for hemorrhagic gastroenteritis in dogs worldwide. High genomic substitution rates in CPV-2 contribute to the progressive emergence of novel variants with increased ability to evade the host immune response. Three studies have analyzed the genomic mutations of CPV-2 variants in Thailand. These investigations were independently conducted at different timepoints. Thus, a retrospective integrated analysis of CPV-2 genomic mutations has not been fully performed. Our study aimed at evaluating the evolutionary changes in CPV-2 in Thailand from 2003 to

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Cavalli, Alessandra, Vito Martella, Costantina Desario, et al. "Evaluation of the Antigenic Relationships among Canine Parvovirus Type 2 Variants." Clinical and Vaccine Immunology 15, no. 3 (2007): 534–39. http://dx.doi.org/10.1128/cvi.00444-07.

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ABSTRACT The antigenic relationships among the original canine parvovirus type 2 (CPV-2) and the variants CPV-2a, -2b, and -2c were evaluated. Cross-antigenic evaluation revealed clear differences among the CPV variants, which were more appreciable by serum neutralization (SN) than by hemagglutination inhibition. Antigenic differences were found mostly between the original CPV-2 and the variants, but they were also observed among the variants CPV-2a, -2b, and -2c. The variant CPV-2c exhibited a unique antigenic pattern, since it was poorly recognized by the sera of animals immunized with CPV-2

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Giraldo-Ramirez, Sebastián, Santiago Rendon-Marin, and Julián Ruiz-Saenz. "Phylogenetic, Evolutionary and Structural Analysis of Canine Parvovirus (CPV-2) Antigenic Variants Circulating in Colombia." Viruses 12, no. 5 (2020): 500. http://dx.doi.org/10.3390/v12050500.

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Canine parvovirus (CPV-2) is the causative agent of haemorrhagic gastroenteritis in canids. Three antigenic variants—CPV-2a, CPV-2b and CPV-2c—have been described, which are determined by variations at residue 426 of the VP2 capsid protein. In Colombia, the CPV-2a and CPV-2b antigenic variants have previously been reported through partial VP2 sequencing. Mutations at residues Asn428Asp and Ala514Ser of variant CPV-2a were detected, implying the appearance of a possible new CPV-2a variant in Colombia. The purpose of the present study was to characterise the full VP2 capsid protein in samples fr

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Hao, Xiangqi, Yanchao Li, Xiangyu Xiao, Bo Chen, Pei Zhou, and Shoujun Li. "The Changes in Canine Parvovirus Variants over the Years." International Journal of Molecular Sciences 23, no. 19 (2022): 11540. http://dx.doi.org/10.3390/ijms231911540.

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Canine parvovirus (CPV-2) is one of the most important pathogens in dogs, and despite the continual development of vaccines against CPV-2, CPV-2 is still circulating in the canine population. The CPV-2a/2b/2c variant has replaced the original CPV-2 virus and seems to exhibit accelerated transmission. Although CPV-2 infection has been frequently reported, no studies have summarized information of CPV-2 variants currently circulating worldwide. To track the evolution of CPV-2, we downloaded and analyzed all VP2 sequences from the NCBI database (from 1978 to 2022). We found that CPV-2c shows a te

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Uronu, C. E., K. Said, A. P. Muhairwa, and A. A. Chengula. "Molecular detection and characterization of canine parvovirus variants in Morogoro and Arusha regions of Tanzania." Tanzania Veterinary Journal 39, no. 1 (2024): 1–12. https://doi.org/10.4314/tvj.v39i1.1.

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Canine parvovirus (CPV) is a significant pathogen that affects wild and domestic dogs globally, resulting in intricate pathological and epidemiological consequences, primarily observed in puppies, such as haemorrhagic enteritis and myocarditis. This virus is categorized into three strains: CPV-2a (which replaced the original strain CPV-2), CPV-2b, and CPV-2c. The objective of this study was to determine the status of CPV-2 and its circulating variants in domestic dogs residing in the Morogoro and Arusha regions of Tanzania. Rectal swabs were collected from a total of 143 domestic dogs with gas

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Kowalczyk, Marek, Barbara Majer-Dziedzic, Krzysztof Kostro, et al. "Diagnostics and genotyping of Canine parvovirus type 2 (CPV-2) from disease cases in south-eastern Poland." Acta Veterinaria 69, no. 1 (2019): 32–46. http://dx.doi.org/10.2478/acve-2019-0002.

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Abstract Canine parvovirus type 2 is one of the most common causes of death among puppies. Despite preventive vaccination, the disease continues to be diagnosed. The aim of the study was to provide a molecular characterization of CPV-2 isolates found in southeastern Poland. Genetic CPV-2 material was isolated from the blood (n=10) and feces (n=50) of infected dogs. The presence of CPV-2 was confirmed by amplification of sequences coding both VP1 and VP2 protein. The products of the PCR reaction with primers amplifying VP2 protein were sequenced and used for genotyping. Bioinformatics analysis

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Alzuheir, Ibrahim M., Adnan F. Fayyad, Belal Y. Abu Helal, Hatem A. Atalla, and Nasr H. Jalboush. "Detection of canine parvovirus type 2c (CPV-2c) in Palestine." Journal of Infection in Developing Countries 18, no. 05 (2024): 809–16. http://dx.doi.org/10.3855/jidc.18835.

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Introduction: The objective of the present study was to report, for the first time, the presence of canine parvovirus type 2c (CPV-2c) in domesticated dogs with acute gastroenteritis and to characterize the antigenic variants circulating in Palestine. Methodology: A veterinary clinical-based epidemiological study was carried out between December 2022 and April 2023. Fifty fecal samples were collected from dogs with gastroenteritis and screened for CPV-2 infection by polymerase chain reaction. The distribution of positive cases according to various epidemiological factors was studied. Partial s

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Mandawat, Saksham, Rashmi Singh, Nazeer Mohammed, et al. "Comparative Pathophysiology of Canine Parvovirus-2 Variants in Naturally Infected Dogs." Asian Journal of Research in Biochemistry 15, no. 3 (2025): 137–44. https://doi.org/10.9734/ajrb/2025/v15i3395.

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Canine Parvovirus-2 (CPV-2) is a highly lethal virus that affects the canid family. It targets rapidly dividing cells in organs such as the intestines, thymus, lymph nodes, bone marrow, and heart, often resulting in multi-organ failure.This study aimed to evaluate the impact of CPV-2 variants on clinico-physiological, haematological and biochemical parameters in dogs. Two hundred faecal and blood samples from symptomatic dogs, along with 10 healthy controls, were collected at VCC, PGIVER, Jaipur, from July 2024 to December 2024. PCR identified 166 CPV-2 positive cases, comprising 147 CPV-2a, 1

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Maganga, Gael Darren, Ingrid Labouba, Serda Zita Milendz Ikapi, et al. "Molecular Characterization of Canine Parvovirus Variants CPV-2a and CPV-2c, Associated with Vaccinated Dogs at Libreville, Gabon." Viruses 15, no. 5 (2023): 1169. http://dx.doi.org/10.3390/v15051169.

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The first detection of canine parvovirus type-2 (CPV-2) was in the early 1970s, when it was known to cause severe gastroenteritis in dogs. However, it has evolved over the years into CPV-2a within 2 years, into CPV-2b after 14 years, into CPV-2c after 16 years and more recently CPV-2a-, 2b- and 2c-like variants reported in 2019, with a global distribution. Reports on the molecular epidemiology of this virus are missing in most African countries. The report of clinical cases among vaccinated dogs in Libreville in Gabon triggered the execution of this study. The objective of this study was to ch

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Hao, Xiangqi, Yuwei He, Chuhan Wang, et al. "The increasing prevalence of CPV-2c in domestic dogs in China." PeerJ 8 (September 29, 2020): e9869. http://dx.doi.org/10.7717/peerj.9869.

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Background Canine parvovirus type 2 (CPV-2), a serious pathogen, leads to high morbidity and mortality in dogs and several wild carnivore species. Although it is a DNA virus, it evolves particularly rapidly, with a genomic substitution rate of approximately 10−4 substitutions/site/year, close to that of some RNA viruses. Tracing the prevalence of CPV-2 in dogs is significant. Methods In this study, an aetiological survey was carried out from 2016 to 2019 in Guangdong Province, China, involving Guangzhou, Shenzhen and Dongguan. Furthermore, to systematically analyse the prevalence of CPV-2 in C

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Thèses sur le sujet "CPV-2 variants"

Yang, Chieh-An, and 楊絜安. "Comparison of the histopathological changes and tissue distributions of CPV-2 variants natural infection by In Situ hybridization." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/jnm55w.

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碩士<br>國立屏東科技大學<br>獸醫學系所<br>106<br>Canine parvovirus type 2 (CPV-2) is one of the most important alimentary and immune system diseases in dogs. It induces severe hemorrhagic enteritis and necrosis of peripheral lymphoid tissue of gastrointestinal tract, and was also been reported showing myocarditis in puppies. CPV-2 was first reported in 1978, and had become a world-wide infectious disease throughout these years, the long period of interaction with the different hosts leads to the variation of the virus. In the 1980s, new antigenic type CPV-2a and 2b had been discovered, and CPV-2c was been re

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Chapitres de livres sur le sujet "CPV-2 variants"

Singh, Mithilesh, Rajendran Manikandan, Ujjwal Kumar De, et al. "Canine parvovirus-2: An Emerging Threat to Young Pets." In Veterinary Medicine and Science. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.104846.

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Canine parvovirus-2 (CPV-2) is a highly contagious and key enteropathogen affecting the canine population around the globe by causing canine parvoviral enteritis (CPVE) and vomition. CPVE is one of the the leading causes of morbidity and mortality in puppies and young dogs. Over the years, five distinct antigenic variants of CPV-2, namely CPV-2a, CPV-2b, new CPV-2a, new CPV-2b, and CPV-2c, have emerged throughout the world. CPV-2 infects a diverse range of wild animals, and the newer variants of CPV-2 have expanded their host range to include felines. Despite the availability of highly specifi

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Oliveira, Sara Stefanie de. "Indústria 4.0 no Brasil: perspectivas e desafios." In Engenharias: Atualização de Área - janeiro e fevereiro de 2023. Centro de Pesquisa, 2023. http://dx.doi.org/10.32749/nucleodoconhecimento.com.br/livros/1801.

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As Revoluções Industriais apresentam formas disruptivas, trazendo mudanças de paradigmas que impactam as mais variadas áreas da sociedade, transformando, principalmente, a forma como a matéria é processada para a fabricação dos bens de consumo. Segundo Viana (2022), Durante a Primeira Revolução Industrial, as instalações de produção mecânica foram desenvolvidas com a ajuda de fontes de água e vapor. Durante a Segunda Revolução Industrial, a produção em massa foi realizada com a ajuda de energia elétrica. Durante a Terceira Revolução Industrial, as tecnologias eletrônicas e de informação foram

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Actes de conférences sur le sujet "CPV-2 variants"

Miranda, Luiza dos Santos, JOANA DETOFANO, BRENDA PICOLI GHENO, TAMIRIS SILVA LOPES, and ANDRÉ FELIPE STRECK. "ESTUDO RETROSPECTIVO SOBRE A CIRCULAÇÃO DAS VARIANTES DE CPV-2 NO BRASIL E AS PRINCIPAIS SUBSTITUIÇÕES DE AMINOÁCIDOS ENCONTRADAS." In III Congresso Brasileiro de Biologia Molecular On-line. Revista Multidisciplinar em Saúde, 2022. http://dx.doi.org/10.51161/iii-conbramol/10804.

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Grosman, Arieh, Tal Duanis-Assaf, Noa Mazurski, Liron Stern, Meital Reches, and Uriel Levy. "On-chip Multi variant COVID 19 detector From silicon nitride double-ring resonators." In CLEO: Science and Innovations. Optica Publishing Group, 2022. http://dx.doi.org/10.1364/cleo_si.2022.sm3l.8.

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We report a label free, rapid and reliable bio-sensor for SARS-CoV-2(COVID-19), consisting of Silicon-Nitride Double-micro-ring-resonator (DMRR) with surface functionalization. Minimum detected concentration of ~ 10 cp/µL and sensitivity of 743 nm/RIU were achieved.

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Silva, Ana Marina Dutra Ferreira da, Igor Dias Brockhausen, Alessandra Lima Nogueira Tolentino, Ana Laura Moura, and Alzira Alves de Siqueira Carvalho. "A467T variant of the polg gene: description of two clinical cases." In XIV Congresso Paulista de Neurologia. Zeppelini Editorial e Comunicação, 2023. http://dx.doi.org/10.5327/1516-3180.141s1.669.

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Introduction: Variations in the POLG gene are the most common causes of mitochondrial disease of autosomal inheritance, and may be present in about 2% of the population. Case report: Case 1. CMAM, male, 48-year-old, complaining of bilateral eyelid ptosis with onset in adolescence. Since the age of six, he has been diagnosed with epilepsy. After five years of follow-up, he developed sensory ataxia. After 10 years he began to present dysarthria, dysphagia, tremor and pyramidal syndrome. Case 2. ASB, female, 42 years old, at 20 years old presented generalized clonic tonic crisis during the second

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Draayer, Bret F., Gary W. Carhart, Thomas R. Walsh, and Michael K. Giles. "Postprocessing of correlation outputs to improve optical recognition system performance." In OSA Annual Meeting. Optica Publishing Group, 1991. http://dx.doi.org/10.1364/oam.1991.thl4.

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Optical correlators employing magnetooptic spatial light modulators (MOSLMs) can process binary phase-only filter (BPOF) responses at kilohertz frame rates,1 making real-time recognition possible. However, aspect invariant recognition is difficult since simple BPOFs are highly sensitive to geometric distortions. Aspect invariant composite BPOFs have been developed; unfortunately, filters that achieve aspect invariance over wide distortion ranges produce reduced correlation peak values, rendering simple threshold decision rules ineffective. A statistical correlation plane filter (CPF) based on

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LINGBEEK, Roald. "Local ductility in steel sheet, towards a practical and robust measurement method." In Material Forming. Materials Research Forum LLC, 2024. http://dx.doi.org/10.21741/9781644903131-110.

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Abstract. Local ductility has become a useful and significant mechanical property of sheet metal, particularly for advanced-high-strength-steels (AHSS) [1, 2]. The widely accepted hole expansion test (HET) [3] has two problems: It mixes up the effects of shear cutting with the intrinsic material ductility, and the variance of test results is large. As a complementary approach, a workgroup consisting of universities, steel producers, automotive suppliers and OEMs have developed VDA-guideline 238-110 [4] for industrial application of the TTS (True Thickness Strain at fracture at minimum thicknes

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Peng, Daowan, Wei Wei, Xian-Ling Mao, Yuanyuan Fu, and Dangyang Chen. "An Empirical Study on the Language Modal in Visual Question Answering." In Thirty-Second International Joint Conference on Artificial Intelligence {IJCAI-23}. International Joint Conferences on Artificial Intelligence Organization, 2023. http://dx.doi.org/10.24963/ijcai.2023/457.

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Generalization beyond in-domain experience to out-of-distribution data is of paramount significance in the AI domain. Of late, state-of-the-art Visual Question Answering (VQA) models have shown impressive performance on in-domain data, partially due to the language prior bias which, however, hinders the generalization ability in practice. This paper attempts to provide new insights into the influence of language modality on VQA performance from an empirical study perspective. To achieve this, we conducted a series of experiments on six models. The results of these experiments revealed that, 1)

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Dejon, Nicolas, Chrystel Gaber, and Gilles Grimaud. "From MMU to MPU: Adaptation of the Pip Kernel to Constrained Devices." In 12th International Conference on Artificial Intelligence, Soft Computing and Applications. Academy and Industry Research Collaboration Center (AIRCC), 2022. http://dx.doi.org/10.5121/csit.2022.122309.

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This article presents a hardware-based memory isolation solution for constrained devices. Existing solutions target high-end embedded systems (typically ARM Cortex-A with a Memory Management Unit, MMU) such as seL4 or Pip (formally verified kernels) or target low-end devices such as ACES, MINION, TrustLite, EwoK but with limited flexibility by proposing a single level of isolation. Our approach consists in adapting Pip to inherit its flexibility (multiple levels of isolation) but using the Memory Protection Unit (MPU) instead of the MMU since the MPU is commonly available on constrained embedd

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Velukkudi Santhanam, Senthil Kumar, Joshua Richard Jeyarajan, Sathish Kumar Manivannan, Joseph Beski Jayamanickam, Raman Kuppusamy, and Nitin Nambi. "Analysis on Mechanical Properties and Corrosion Behavior of Friction Stir Processing of Commercially Pure-Titanium." In ASME 2022 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/imece2022-93876.

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Abstract Friction Stir Processing has become the ideal way to refine the grains which increases the mechanical properties like formability, microhardness, yield strength and Tensile Strength, also increases the corrosion resistance, which emerged as the effective way for selective surface modification and also retaining the bulk properties. In this present work, Titanium grade 2 (Commercially Pure Titanium) is selected as the material of choice due to its superior corrosion resistance compared to other grades of titanium, high tensile strength and high hardness. Due to soft, excellent corrosio

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Medina, Antonio, Fatma Al Shamsi, and Mohamed Al Ameri. "Best Practices Implementation for Monolithic Isolation Joints on Ultra Sour Gas Applications." In ADIPEC. SPE, 2024. http://dx.doi.org/10.2118/222607-ms.

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Abstract Monolithic Isolation Joints (MIJ) are widely used on pipeline systems to electrically split the line into two (2) sections for Cathodic Protection (CP) coverage delimitation, as example. Failure of two MIJ are investigated for the gathering system handling ultra-sour gas multiphase fluid from ADNOC Sour Gas field, containing more than 23% H2S and 10% CO2 and operating at 90 °C and 93 barg conditions (design data: 118 °C and 96.5 barg). The testing aimed to assess the mechanical and chemical properties of the materials to identify any detrimental situation contributing to the failure.

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Raheem, Oriyomi, Wen Pan, Carlos Torres-Verdín, and Misael M. Morales. "Best Practices in Automatic Permeability Estimation: Machine-Learning Methods vs. Conventional Petrophysical Models." In 2023 SPWLA 64th Annual Symposium. Society of Petrophysicists and Well Log Analysts, 2023. http://dx.doi.org/10.30632/spwla-2023-0084.

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Multiple physics-based and empirical models have been introduced in the past to estimate permeability from well logs. Estimation of flow-related petrophysical properties from borehole geophysical measurements is challenging in the presence of spatially complex rocks. This paper documents best practices for permeability estimation by comparing results obtained with both machine-learning methods and conventional petrophysical models. Furthermore, comparisons are performed of different salient statistical and petrophysical features obtained with the two approaches. We preprocessed core data acqui

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