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Ulas N, Ozkanlar Y, Ozkanlar S, Timurkan MO, Aydin H. Clinical and inflammatory response to antiviral treatments in dogs with parvoviral enteritis. J Vet Sci 2024; 25:e11. [PMID: 38311324 PMCID: PMC10839179 DOI: 10.4142/jvs.23139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 09/11/2023] [Accepted: 09/24/2023] [Indexed: 02/07/2024] Open
Abstract
BACKGROUND Canine parvoviral enteritis (CPE) is a fatal disease worldwide. The treatment of CPE is based mainly on supportive and symptomatic treatment. Antiviral addition to the treatment may result in a higher survival. OBJECTIVES This study evaluated the effects of antiviral treatments with a standardized treatment (ST) on the clinical and inflammatory response of dogs with naturally occurring CPE. METHODS Twenty-eight dogs with CPE caused by canine parvovirus type 2 were divided randomly into treatment groups. The ST group received fluid, antibiotic, antiemetic, and deworming treatments. The antiviral treatment groups received the same ST with an additional antiviral drug, recombinant feline interferon omega (rFeIFN-ω), oseltamivir (OSEL) or famciclovir (FAM). RESULTS Compared to the healthy control, the tumor necrosis factor-α, interleukin-1β, interferon (IFN)-α, IFN-γ, haptoglobin, and C-reactive protein values were high (p < 0.05) on day zero. At presentation, mild lymphopenia, neutropenia, and a high neutrophil to lymphocyte (LYM) ratio (NLR) were also observed. Adding rFeIFN-ω to the ST produced the best improvement in the clinical score with a decreased NLR, while leucocytes remained low and inflammatory markers stayed high on day three. The survival rates of the groups were 85.7% in ST+IFN, 71.4% in ST+OSEL, 71.4% in ST+FAM, and 57.1% in ST groups on day seven. CONCLUSIONS Antiviral drugs may be valuable in treating CPE to improve the clinical signs and survival. In addition, the decrease in NLR in favor of LYM may be an indicator of the early prognosis before the improvement of leukocytes, cytokines, and acute phase proteins in CPE.
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Affiliation(s)
- Nergis Ulas
- Department of Internal Medicine, Faculty of Veterinary, Ataturk University, Erzurum 25240, Turkey.
| | - Yunusemre Ozkanlar
- Department of Internal Medicine, Faculty of Veterinary, Ondokuz Mayis University, Samsun 55139, Turkey
| | - Seckin Ozkanlar
- Department of Biochemistry, Faculty of Veterinary, Ataturk University, Erzurum 25240, Turkey
| | - Mehmet Ozkan Timurkan
- Department of Virology, Faculty of Veterinary, Ataturk University, Erzurum 25240, Turkey
| | - Hakan Aydin
- Department of Virology, Faculty of Veterinary, Ataturk University, Erzurum 25240, Turkey
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dos Santos TG, Orlandin JR, de Almeida MF, Scassiotti RF, Oliveira VC, Santos SIP, Pereira VM, Pinto PAF, Mariano CG, Ambrósio CE. Ozone therapy: protocol for treating canine parvovirus infection. BRAZILIAN JOURNAL OF VETERINARY MEDICINE 2023; 45:e004622. [PMID: 36819842 PMCID: PMC9930911 DOI: 10.29374/2527-2179.bjvm004622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 02/03/2023] [Indexed: 02/16/2023] Open
Abstract
Canine Parvovirus infection is a disease caused by Canine Parvovirus (CPV) that results in hemorrhagic gastroenteritis and secondary infections, mainly in puppies between six weeks and six months old that are not immunized. Since there is no specific treatment for the condition, supportive therapy based on antibiotics, antiemetics, and non-steroidal anti-inflammatory drugs is traditionally used. Ozone therapy is an economical treatment that has bactericidal, fungicidal, and antiviral properties, besides promoting oxygenation and tissue regeneration, as well as anti-inflammatory and analgesic effects, and was used as a complementary therapy in this study. Therefore, four mixed-breed dogs, aged between 2 and 3 months, with no previous immunization against CPV and testing positive for the virus in a rapid test were selected. The animals were randomly distributed into two groups, being 1: the control group (n=2) that received only supportive treatment; and 2: the experimental group (n=2), that in addition to conventional therapy received intravenously 500 mL of ozonized Ringer's Lactate solution. Before treatment and after 24 and 48 hours, the following clinical signs were evaluated: episodes of emesis and diarrhea, weight, hydration, blood glucose level, abdominal pain, and blood count. One control group animal died within the first hours of hospitalization. Both animals in the experimental group presented faster resolution of diarrheal episodes and shorter hospitalization time when compared to the surviving animal that received only supportive treatment. Although further studies are needed, ozone therapy showed promising results for the treatment of canine parvovirus.
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Affiliation(s)
- Tiago Gonçalves dos Santos
- Undergaduate in Veterinary MedicineDepartamento de Medicina VeterináriaFaculdade de Zootecnia e Engenharia de AlimentosPirassunungaSPBrazilUndergaduate in Veterinary Medicine, Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, USP, Pirassununga, SP, Brazil,Correspondence
Tiago Gonçalves dos Santos; Carlos Eduardo Ambrósio
Laboratório de Cultivo de Células Tronco e Terapia Gênica, Departamento de Medicina, Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo - USP
Av. Duque de Caxias Norte, 225, ZMV, Campus USP
CEP 13635-900 - Pirassununga (SP), Brasil
E-mail: ;
| | - Jéssica Rodrigues Orlandin
- VeterinarianDepartamento de Medicina VeterináriaFaculdade de Zootecnia e Engenharia de AlimentosPirassunungaSPBrazilVeterinarian, DSc. Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, USP, Pirassununga, SP, Brazil
| | - Matheus Ferreira de Almeida
- Undergaduate in Veterinary MedicineDepartamento de Medicina VeterináriaFaculdade de Zootecnia e Engenharia de AlimentosPirassunungaSPBrazilUndergaduate in Veterinary Medicine, Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, USP, Pirassununga, SP, Brazil
| | - Rodrigo Ferreira Scassiotti
- VeterinarianDepartamento de Medicina Veterinária Faculdade de Zootecnia e Engenharia de AlimentosPirassunungaSPBrazilVeterinarian, MSc. Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, USP, Pirassununga, SP, Brazil
| | - Vanessa Cristina Oliveira
- BiologistDepartamento de Medicina VeterináriaFaculdade de Zootecnia e Engenharia de AlimentosPirassunungaSPBrazilBiologist, DSc, Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, USP, Pirassununga, SP, Brazil.
| | - Sarah Ingrid Pinto Santos
- VeterinarianDepartamento de Medicina VeterináriaFaculdade de Zootecnia e Engenharia de AlimentosPirassunungaSPBrazilVeterinarian, DSc. Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, USP, Pirassununga, SP, Brazil
| | - Vitória Mattos Pereira
- Undergaduate in Veterinary MedicineDepartamento de Medicina VeterináriaFaculdade de Zootecnia e Engenharia de AlimentosPirassunungaSPBrazilUndergaduate in Veterinary Medicine, Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, USP, Pirassununga, SP, Brazil
| | - Priscilla Avelino Ferreira Pinto
- PhysiotherapistDepartamento de CirurgiaFaculdade de Medicina Veterinária e ZootecniaPirassunungaSPBrazilPhysiotherapist, MSc, Departamento de Cirurgia, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo (USP), Pirassununga, SP, Brazil
| | - Clésio Gomes Mariano
- BiologistDepartamento de Medicina VeterináriaFaculdade de Zootecnia e Engenharia de AlimentosPirassunungaSPBrazilBiologist, MSc. Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, USP, Pirassununga, SP, Brazil
| | - Carlos Eduardo Ambrósio
- VeterinarianDepartamento de Medicina VeterináriaFaculdade de Zootecnia e Engenharia de AlimentosPirassunungaSPBrazilVeterinarian, DSc, Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo (USP), Pirassununga, SP, Brazil.
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Muñoz AI, Maldonado-García JL, Fragozo A, Vallejo-Castillo L, Lucas-Gonzalez A, Trejo-Martínez I, Pavón L, Pérez-Sánchez G, Cobos-Marin L, Pérez-Tapia SM. Altered neutrophil-to-lymphocyte ratio in sepsis secondary to canine parvoviral enteritis treated with and without an immunomodulator in puppies. Front Vet Sci 2022; 9:995443. [PMID: 36425123 PMCID: PMC9679511 DOI: 10.3389/fvets.2022.995443] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 10/20/2022] [Indexed: 08/29/2023] Open
Abstract
Neutrophil-to-lymphocyte ratio (NLR) is a cheap and easy-to-obtain biomarker that mirrors the balance between innate and adaptive immunity. Cortisol and catecholamines have been identified as major drivers of NLR. High cortisol levels increase neutrophils while simultaneously decreasing lymphocyte counts. Likewise, endogenous catecholamines may cause leukocytosis and lymphopenia. Thus, NLR allows us to monitor patient severity in conditions such as sepsis. Twenty-six puppies with sepsis secondary to canine parvoviral enteritis were treated with and without an immunomodulator. Our group determined the NLR and the plasmatic cortisol levels by chemiluminescence, and norepinephrine (NE) and epinephrine (E) by HPLC during the first 72 h of clinical follow-up. Our results showed that at admission puppies presented an NLR value of 1.8, cortisol of 314.9 nmol/L, NE 3.7, and E 3.3 pmol/mL. Both treatments decreased admission NLR values after 24 h of treatment. However, only the puppies treated with the immunomodulator (I) remained without significant changes in NLR (0.7-1.4) compared to the CT group, and that showed a significant difference (P < 0.01) in their NLR value (0.4-4.6). In addition, we found significant differences in the slope values between the admission and final values of NLR (P < 0.005), cortisol (P < 0.02), and E (P < 0.05) between treatments. Then, our data suggest that the immunomodulator positively affects the number of lymphocytes and neutrophils involved in NLR as well as major drivers like cortisol and epinephrine, which is reflected in clinical parameters and survival.
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Affiliation(s)
- Adriana I. Muñoz
- Unidad de Desarrollo e Investigación en Bioterapéuticos (UDIBI), Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
- Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
| | - José Luis Maldonado-García
- Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
- Laboratorio de Psicoinmunología, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Mexico City, Mexico
| | - Ana Fragozo
- Unidad de Desarrollo e Investigación en Bioterapéuticos (UDIBI), Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
- Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
- Laboratorio Nacional para Servicios Especializados de Investigación, Desarrollo e Innovación (I + D + i) para Farmoquímicos y Biotecnológicos (LANSEIDI-FarBiotec-CONACyT), Mexico City, Mexico
| | - Luis Vallejo-Castillo
- Unidad de Desarrollo e Investigación en Bioterapéuticos (UDIBI), Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
- Laboratorio Nacional para Servicios Especializados de Investigación, Desarrollo e Innovación (I + D + i) para Farmoquímicos y Biotecnológicos (LANSEIDI-FarBiotec-CONACyT), Mexico City, Mexico
| | - Amellalli Lucas-Gonzalez
- Unidad de Desarrollo e Investigación en Bioterapéuticos (UDIBI), Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
- Laboratorio Nacional para Servicios Especializados de Investigación, Desarrollo e Innovación (I + D + i) para Farmoquímicos y Biotecnológicos (LANSEIDI-FarBiotec-CONACyT), Mexico City, Mexico
| | - Ismael Trejo-Martínez
- Unidad de Desarrollo e Investigación en Bioterapéuticos (UDIBI), Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
- Laboratorio Nacional para Servicios Especializados de Investigación, Desarrollo e Innovación (I + D + i) para Farmoquímicos y Biotecnológicos (LANSEIDI-FarBiotec-CONACyT), Mexico City, Mexico
| | - Lenin Pavón
- Laboratorio de Psicoinmunología, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Mexico City, Mexico
| | - Gilberto Pérez-Sánchez
- Laboratorio de Psicoinmunología, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Mexico City, Mexico
| | - Laura Cobos-Marin
- Laboratorio de Virología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de Mexico, Mexico City, Mexico
| | - Sonia Mayra Pérez-Tapia
- Unidad de Desarrollo e Investigación en Bioterapéuticos (UDIBI), Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
- Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
- Laboratorio Nacional para Servicios Especializados de Investigación, Desarrollo e Innovación (I + D + i) para Farmoquímicos y Biotecnológicos (LANSEIDI-FarBiotec-CONACyT), Mexico City, Mexico
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Horecka K, Neal S. Critical Problems for Research in Animal Sheltering, a Conceptual Analysis. Front Vet Sci 2022; 9:804154. [PMID: 35433910 PMCID: PMC9010978 DOI: 10.3389/fvets.2022.804154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 02/22/2022] [Indexed: 11/13/2022] Open
Abstract
Animal shelter research has seen significant increases in participation over the past several decades from academic organizations, private organizations, public entities, and even corporations that aims to improve shelter programs, processes, operations, and outcomes for the various stakeholders/participants involved in a shelter system (animals, humans, the community, wildlife, and the environment). These efforts are scattered through a huge variety of different research areas that are challenging to define and scope for organizations seeking to start new lines of research inquiry. This work aims to enumerate some of the most critical outstanding problems for research in animal sheltering in a conceptual framework that is intended to help direct research conversations toward the research topics of highest impact (with the highest quality outcomes possible). To this end, we define seven (7) key areas for research: animal behavior, adoptions and special needs populations, medical conditions, disease transmission, community, ecology, and wellness (one health), operations, and public-private-academic-corporate collaboration. Within each of these areas, we review specific problems and highlight examples of successes in each area in the past several decades. We close with a discussion of some of the topics that were not detailed in this manuscript but, nonetheless, deserve some mention. Through this enumeration, we hope to spur conversation around innovative methodologies, technologies, and concepts in both research and practice in animal sheltering.
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Affiliation(s)
- Kevin Horecka
- Research Department, Austin Pets Alive!, Austin, TX, United States
- *Correspondence: Kevin Horecka
| | - Sue Neal
- Arkansas State University, Department of Political Science, Jonesboro, AR, United States
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Shima FK, Gberindyer FA, Tion MT, Fagbohun OA, Omobowale TO, Nottidge HO. Diagnostic Performance of a Rapid Immunochromatographic Test Kit for Detecting Canine Parvovirus Infection. Top Companion Anim Med 2021; 45:100551. [PMID: 34119705 DOI: 10.1016/j.tcam.2021.100551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 05/26/2021] [Accepted: 06/03/2021] [Indexed: 11/18/2022]
Abstract
In dogs, canine parvovirus (CPV) enteritis is associated with high morbidity and fatality rates requiring early diagnosis to facilitate treatment and reduce its spread. In recent times, various commercial immunochromatographic (IC) test kits are available for its rapid diagnosis, which require an assessment of their accuracy. Therefore, precision of a point-of-care IC combination test kit for canine coronavirus (CCoV)/CPV faecal antigen detection was evaluated in this study. Multicentred random faecal samples from 115 dogs with gastroenteritis were checked for the presence of CPV antigens using the SensPERT IC combination test kit and the result was compared with polymerase chain reaction (PCR) as a reference test. Parvovirus was detected in 105 (91.3%) and 108 (93.9%) faecal samples by the point-of-care test kit and PCR, respectively. The point-of-care IC test kit showed 95.4% relative sensitivity, 71.4% specificity, 98.1% positive predictive value, 50.0% negative predictive value, and 93.9% accuracy comparable to conventional PCR in the samples tested. This point-of-care test kit also demonstrated a fair positive likelihood ratio (3.34), a very low negative likelihood ratio (0.07) and a moderate agreement (Kappa = 0.6) compared with conventional PCR. This test kit has shown to be very useful in the screening of dogs for CPV infection, and is a reliable alternative for diagnosing CPV both in conventional laboratories and remote areas without laboratories. Negative results in the IC testing with high suspicion of CPV infection should be further confirmed using superior test such as PCR.
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Affiliation(s)
- Felix K Shima
- Department of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Fidelis A Gberindyer
- Department of Veterinary Pharmacology and Toxicology, Federal University of Agriculture, Makurdi, Nigeria
| | - Matthew T Tion
- Department of Veterinary Medicine, Federal University of Agriculture, Makurdi, Nigeria
| | - Olusegun A Fagbohun
- Department of Veterinary Microbiology, University of Ibadan, Ibadan, Nigeria
| | | | - Helen O Nottidge
- Department of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
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Jacobson LS, Janke KJ, Giacinti J, Weese JS. Diagnostic testing for feline panleukopenia in a shelter setting: a prospective, observational study. J Feline Med Surg 2021; 23:1192-1199. [PMID: 33847532 PMCID: PMC8637359 DOI: 10.1177/1098612x211005301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Objectives The aim of this study was to optimize the diagnosis of feline panleukopenia virus (FPV) infection in a shelter setting by: (1) comparing the results of the canine parvovirus IDEXX SNAP Parvo (SNAP) point-of-care ELISA with a commercial FPV quantitative real-time PCR (qPCR) test; (2) assessing whether vomit and anal/rectal swabs could be used for early diagnosis; and (3) clarifying the interpretation of weak-positive SNAP test results. Methods The study included shelter cats and kittens with incomplete or unknown vaccination history that had clinical signs suspicious for feline panleukopenia and fecal SNAP and PCR tests performed within 24 h of onset. Feces, anal/rectal swabs and vomit were tested using SNAP and PCR, with fecal PCR utilized as the reference standard. Results One hundred and forty-five cats were included. Seventeen were diagnosed with FPV infection and 62 were negative; 66 could not be individually designated because they were co-housed. Sensitivity was as follows: fecal SNAP 55% (n = 102; 95% confidence interval [CI] 32–77); swab SNAP 30% (n = 55; 95% CI 7–65); swab PCR 77% (n = 55; 95% CI 46–95); and vomit PCR 100% (n = 17; 95% CI 16–100). Specificity was high (96–100%) for all sample and test types. For PCR-positive fecal samples, true-positive SNAP tests (including weak positives) had significantly higher DNA viral copy numbers than false-negative SNAP tests (P = 0.0031). Conclusions and relevance The SNAP ELISA should be viewed as an initial diagnostic test to rule in feline panleukopenia. Positive fecal SNAP test results, including weak positives, are highly likely to be true positives in clinically affected animals. Negative results in clinically affected animals are unreliable and should be followed up with PCR testing.
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Diagnostic Challenges in Canine Parvovirus 2c in Vaccine Failure Cases. Viruses 2020; 12:v12090980. [PMID: 32899378 PMCID: PMC7552027 DOI: 10.3390/v12090980] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 08/26/2020] [Accepted: 08/31/2020] [Indexed: 01/06/2023] Open
Abstract
In this study, three different diagnostic tests for parvovirus were compared with vaccination status and parvovirus genotype in suspected canine parvovirus cases. Faecal samples from vaccinated (N17) and unvaccinated or unknown vaccination status (N41) dogs that had clinical signs of parvovirus infection were tested using three different assays of antigen tests, conventional and quantitative PCR tests. The genotype of each sample was determined by sequencing. In addition to the suspected parvovirus samples, 21 faecal samples from apparently healthy dogs were tested in three diagnostic tests to evaluate the sensitivity and specificity of the tests. The antigen test was positive in 41.2% of vaccinated dogs and 73.2% of unvaccinated diseased dogs. Conventional PCR and qPCR were positive for canine parvovirus (CPV) in 82.4% of vaccinated dogs and 92.7% of unvaccinated dogs. CPV type-2c (CPV-2c) was detected in 82.75% of dogs (12 vaccinated and 36 unvaccinated dogs), CPV-2b was detected in 5.17% dogs (one vaccinated and two unvaccinated) and CPV-2a in 1.72% vaccinated dog. Mean Ct values in qPCR for vaccinated dogs were higher than the unvaccinated dogs (p = 0.049), suggesting that vaccinated dogs shed less virus, even in clinical forms of CPV. CPV-2c was the dominant subtype infecting dogs in both vaccinated and unvaccinated cases. Faecal antigen testing failed to identify a substantial proportion of CPV-2c infected dogs, likely due to low sensitivity. The faecal samples from apparently healthy dogs (n = 21) showed negative results in all three tests. Negative CPV faecal antigen results should be viewed with caution until they are confirmed by molecular methods.
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Abstract
Canine parvoviral enteritis is one of the most common causes of morbidity and mortality in dogs worldwide. Tests can detect viral antigen in feces, and characteristic decreases in total leukocyte, neutrophil, and lymphocyte counts can increase the index of suspicion in affected cases and can be used to prognosticate morbidity and mortality. The standard of care for infected animals includes IV crystalloid and sometimes colloid fluids, antiemetics, broad-spectrum antibiotics, and early enteral nutrition. Vaccination induces protective immunity in most dogs. Vaccination, along with limiting exposure in young puppies, is the most effective means of preventing parvoviral enteritis in dogs.
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Affiliation(s)
- Elisa M Mazzaferro
- Cornell University Veterinary Specialists, 880 Canal Street, Stamford, CT 06902, USA; Emergency and Critical Care, Cornell University Hospital for Animals, Ithaca, NY, USA.
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Lifestyle as Risk Factor for Infectious Causes of Death in Young Dogs: A Retrospective Study in Southern Italy (2015-2017). Vet Med Int 2020; 2020:6207297. [PMID: 32566119 PMCID: PMC7293748 DOI: 10.1155/2020/6207297] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 02/10/2020] [Accepted: 03/23/2020] [Indexed: 01/09/2023] Open
Abstract
Infectious diseases are a common cause of death in young dogs. Several factors are thought to predispose young dogs to microbiological infections. Identifying the cause of death is often a challenge, and broad diagnostic analysis is often needed. Here, we aimed to determine the infectious causes of death in young dogs aged up to 1 year, examining how it relates to age (under and over 6 months), lifestyle (owned versus ownerless), breed (purebred and crossbreed), and gender. A retrospective study was conducted in a 3-year period (2015-2017) on 138 dead dogs that had undergone necropsy and microbiological diagnostics. Enteritis and pneumonia were the most commonly observed lesions. Polymicrobism was more prevalent (62.3%) than single-agent infections and associated with a higher rate of generalised lesions. Ownerless dogs showed over a three-fold higher predisposition to viral coinfections than owned dogs. Above all, canine parvovirus was the most prevalent agent (77.5%), followed by canine coronavirus (31.1%) and canine adenovirus (23.9%); ownerless pups had a higher predisposition to these viruses. Escherichia coli (23.9%), Clostridium perfringens type A (18.1%), and Enterococcus spp. (8.7%) were the most commonly identified bacteria, which mostly involved in coinfections. A lower prevalence of CDV and Clostridium perfringens type A was observed in puppies under 6 months of age. In conclusion, this study is the first comprehensive survey on a wide panel of microbiological agents related to necropsy lesions. It lays the groundwork for future studies attempting to understand the circulation of infectious agents in a determined area.
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Horecka K, Porter S, Amirian ES, Jefferson E. A Decade of Treatment of Canine Parvovirus in an Animal Shelter: A Retrospective Study. Animals (Basel) 2020; 10:E939. [PMID: 32485882 PMCID: PMC7341501 DOI: 10.3390/ani10060939] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 05/22/2020] [Accepted: 05/24/2020] [Indexed: 02/06/2023] Open
Abstract
Here, we present 11.5 years of monthly treatment statistics showing an overall intake of 5127 infected dogs between June 2008 and December 2019, as well as more detailed datasets from more recent, less protracted time periods for the examination of mortality risk, seasonality, and resource requirements in the mass treatment of canine parvovirus (CPV) in a private animal shelter. The total survival rate of animals during the study period was 86.6% (n = 4438/5127 dogs survived) with the probability of survival increasing to 96.7% after five days of treatment (with 80% of fatalities occurring in that period). A distinct parvovirus season peaking in May and June and troughing in August, September, December, and January was observed, which could have contributed as much as 41 animals peak-to-trough in the monthly population (with a potential, smaller season occurring in October). Low-weight and male animals were at higher risk for death, whereas age was not a significant contributing factor. Treatment time averaged 9.03 h of total care during a seven-day median treatment duration. These findings, taken together, demonstrate that canine parvovirus can be successfully treated in a sustainable manner within a shelter setting using a largely volunteer workforce.
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Affiliation(s)
- Kevin Horecka
- Research Department, Austin Pets Alive!, Austin, TX 78703, USA; (S.P.); (E.S.A.); (E.J.)
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Canine parvovirus (CPV) phylogeny is associated with disease severity. Sci Rep 2019; 9:11266. [PMID: 31375758 PMCID: PMC6677720 DOI: 10.1038/s41598-019-47773-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 07/22/2019] [Indexed: 12/02/2022] Open
Abstract
After its first identification in 1978, canine parvovirus (CPV) has been recognized all around the world as a major threat for canine population health. This ssDNA virus is characterized by a high substitution rate and several genetic and phenotypic variants emerged over time. Overall, the definition of 3 main antigenic variants was established based on specific amino acid markers located in a precise capsid position. However, the detection of several minor variants and incongruence observed between the antigenic classification and phylogeny have posed doubts on the reliability of this scheme. At the same time, CPV heterogeneity has favored the hypothesis of a differential virulence among variants, although no robust and consistent demonstration has been provided yet. The present study rejects the antigenic variant concept and attempts to evaluate the association between CPV strain phylogeny, reconstructed using the whole information contained in the VP2 coding gene, and several clinical and hemato-biochemical parameters, assessed from 34 CPV infected dogs at admission. By using different statistical approaches, the results of the present study show an association between viral phylogeny and host parameters ascribable to immune system, coagulation profile, acute phase response and, more generally, to the overall picture of the animal response. Particularly, a strong and significant phylogenetic signal was proven for neutrophil count and WBC. Therefore, despite the limited sample size, a relation between viral phylogeny and disease severity has been observed for the first time, suggesting that CPV virulence is an inherited trait. The likely existence of clades with different virulence highlights once more the relevance of intensive epidemiological monitoring and research on CPV evolution to better understand the virulence determinants, their epidemiology and develop adequate countermeasures.
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Altered blood procalcitonin, C-reactive protein, and leucocytes count in association with canine parvovirus (CPV) enteritis. ACTA ACUST UNITED AC 2019. [DOI: 10.1007/s00580-019-02941-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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13
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Kelman M, Ward MP, Barrs VR, Norris JM. The geographic distribution and financial impact of canine parvovirus in Australia. Transbound Emerg Dis 2018; 66:299-311. [DOI: 10.1111/tbed.13022] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 06/25/2018] [Accepted: 09/11/2018] [Indexed: 11/29/2022]
Affiliation(s)
- Mark Kelman
- Sydney School of Veterinary Science The University of Sydney Sydney NSW Australia
| | - Michael P. Ward
- Sydney School of Veterinary Science The University of Sydney Sydney NSW Australia
| | - Vanessa R. Barrs
- Sydney School of Veterinary Science The University of Sydney Sydney NSW Australia
| | - Jacqueline M. Norris
- Sydney School of Veterinary Science The University of Sydney Sydney NSW Australia
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14
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Tucciarone CM, Franzo G, Mazzetto E, Legnardi M, Caldin M, Furlanello T, Cecchinato M, Drigo M. Molecular insight into Italian canine parvovirus heterogeneity and comparison with the worldwide scenario. INFECTION GENETICS AND EVOLUTION 2018; 66:171-179. [PMID: 30257188 DOI: 10.1016/j.meegid.2018.09.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 08/27/2018] [Accepted: 09/19/2018] [Indexed: 02/07/2023]
Abstract
Canine parvovirus is one of the most frequent pathogens of young dogs, causing severe clinical manifestations. Its phenotypic variability led to an antigenic-based classification into different variants, which have been reported worldwide. To update the Italian distribution of CPV, a molecular survey was performed on 100 geographically-annotated samples collected from 2008 to 2015 by full VP2 sequencing. All three antigenic variants (CPV-2a, 2b, 2c) were detected during the studied period, being CPV-2a the most prevalent (60%). Locally, CPV appeared widely distributed, without any regional or temporal clustering, demonstrating an outstanding and uncontrolled within-country viral spreading. The Italian sequences were also contextualized in the International scenario. The analysis of CPV worldwide molecular epidemiology highlighted the remarkable genetic heterogeneity of the circulating strains and their broad distribution. In fact, a frequent viral exchange among Countries, was proven both over short and long distances, involving haplotypes persisting through time. The reported information on viral dissemination patterns appears crucial for understanding the introduction routes of new variants or strains, which could complicate the epidemiological scenario, affect the disease patterns, show possible differential virulence and clinical relevance of emerging strains especially, and impair the vaccine efficacy.
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Affiliation(s)
- Claudia Maria Tucciarone
- Department of Animal Medicine, Production and Health (MAPS), University of Padua, Viale dell'Università 16, 35020 Legnaro, PD, Italy.
| | - Giovanni Franzo
- Department of Animal Medicine, Production and Health (MAPS), University of Padua, Viale dell'Università 16, 35020 Legnaro, PD, Italy
| | - Eva Mazzetto
- Department of Animal Medicine, Production and Health (MAPS), University of Padua, Viale dell'Università 16, 35020 Legnaro, PD, Italy
| | - Matteo Legnardi
- Department of Animal Medicine, Production and Health (MAPS), University of Padua, Viale dell'Università 16, 35020 Legnaro, PD, Italy
| | - Marco Caldin
- "San Marco" Private Veterinary Clinic, Via dell'Industria 3, 35030 Veggiano, PD, Italy
| | - Tommaso Furlanello
- "San Marco" Private Veterinary Laboratory, Via dell'Industria 3, 35030 Veggiano, PD, Italy
| | - Mattia Cecchinato
- Department of Animal Medicine, Production and Health (MAPS), University of Padua, Viale dell'Università 16, 35020 Legnaro, PD, Italy
| | - Michele Drigo
- Department of Animal Medicine, Production and Health (MAPS), University of Padua, Viale dell'Università 16, 35020 Legnaro, PD, Italy
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15
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Development and evaluation of a gold nanoparticle-based immunochromatographic strip test for the detection of canine parvovirus. Arch Virol 2018; 163:2359-2368. [DOI: 10.1007/s00705-018-3846-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 04/12/2018] [Indexed: 11/26/2022]
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16
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Ortega AF, Martínez-Castañeda JS, Bautista-Gómez LG, Muñoz RF, Hernández IQ. Identification of co-infection by rotavirus and parvovirus in dogs with gastroenteritis in Mexico. Braz J Microbiol 2017; 48:769-773. [PMID: 28716388 PMCID: PMC5628314 DOI: 10.1016/j.bjm.2017.03.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 02/13/2017] [Accepted: 03/07/2017] [Indexed: 11/24/2022] Open
Abstract
This is the first report on circulating canine rotavirus in Mexico. Fifty samples from dogs with gastroenteritis were analyzed used polymerase chain reaction and reverse transcription polymerase chain reaction in order to identify parvovirus and rotavirus, respectively; 7% of dogs were infected with rotavirus exclusively, while 14% were co-infected with both rotavirus and parvovirus; clinical signs in co-infected dogs were more severe.
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Affiliation(s)
- Ariadna Flores Ortega
- Centro de Investigación y Estudios Avanzados en Salud Animal, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Toluca, Estado de México, México
| | - José Simón Martínez-Castañeda
- Centro de Investigación y Estudios Avanzados en Salud Animal, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Toluca, Estado de México, México.
| | - Linda G Bautista-Gómez
- Centro Universitario Amecameca, Universidad Autónoma del Estado de México, Amecameca de Juárez, México
| | - Raúl Fajardo Muñoz
- Centro de Investigación y Estudios Avanzados en Salud Animal, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Toluca, Estado de México, México
| | - Israel Quijano Hernández
- Hospital Veterinario de Pequeñas Especies, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Toluca, Estado de México, México
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17
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Investigation of a Canine Parvovirus Outbreak using Next Generation Sequencing. Sci Rep 2017; 7:9633. [PMID: 28852158 PMCID: PMC5575238 DOI: 10.1038/s41598-017-10254-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 08/08/2017] [Indexed: 11/30/2022] Open
Abstract
Canine parvovirus (CPV) outbreaks can have a devastating effect in communities with dense dog populations. The interior region of Alaska experienced a CPV outbreak in the winter of 2016 leading to the further investigation of the virus due to reports of increased morbidity and mortality occurring at dog mushing kennels in the area. Twelve rectal-swab specimens from dogs displaying clinical signs consistent with parvoviral-associated disease were processed using next-generation sequencing (NGS) methodologies by targeting RNA transcripts, and therefore detecting only replicating virus. All twelve specimens demonstrated the presence of the CPV transcriptome, with read depths ranging from 2.2X – 12,381X, genome coverage ranging from 44.8–96.5%, and representation of CPV sequencing reads to those of the metagenome background ranging from 0.0015–6.7%. Using the data generated by NGS, the presence of newly evolved, yet known, strains of both CPV-2a and CPV-2b were identified and grouped geographically. Deep-sequencing data provided additional diagnostic information in terms of investigating novel CPV in this outbreak. NGS data in addition to limited serological data provided strong diagnostic evidence that this outbreak most likely arose from unvaccinated or under-vaccinated canines, not from a novel CPV strain incapable of being neutralized by current vaccination efforts.
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Mylonakis ME, Kalli I, Rallis TS. Canine parvoviral enteritis: an update on the clinical diagnosis, treatment, and prevention. VETERINARY MEDICINE (AUCKLAND, N.Z.) 2016; 7:91-100. [PMID: 30050842 PMCID: PMC6053044 DOI: 10.2147/vmrr.s80971] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Canine parvovirus type 2 is the cause of a highly contagious acute enteritis associated with high morbidity and mortality, with very low survival rates in untreated dogs. Although severe clinical disease typically occurs in dogs younger than 6 months of age, adults with insufficient immunity may potentially be affected. In this article, the current state of knowledge is reviewed regarding the diagnostic aspects of parvoviral enteritis, with special emphasis placed on the clinical relevance of the detection of viral antigens in the feces, detection of viral antibodies in the serum, or the polymerase chain reaction-based amplification of the viral DNA in the feces. In addition, the components of the supportive and symptomatic treatment aiming to optimize the outcome of the disease in the clinical setting are thoroughly reviewed. Immunization guidelines for the prevention of the disease are also updated.
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Affiliation(s)
- Mathios E Mylonakis
- Companion Animal Clinic, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece,
| | - Iris Kalli
- Companion Animal Clinic, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece,
| | - Timoleon S Rallis
- Companion Animal Clinic, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece,
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19
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Miranda C, Thompson G. Canine parvovirus: the worldwide occurrence of antigenic variants. J Gen Virol 2016; 97:2043-2057. [PMID: 27389721 DOI: 10.1099/jgv.0.000540] [Citation(s) in RCA: 142] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The most important enteric virus infecting canids is canine parvovirus type 2 (CPV-2). CPV is the aetiologic agent of a contagious disease, mainly characterized by clinical gastroenteritis signs in younger dogs. CPV-2 emerged as a new virus in the late 1970s, which could infect domestic dogs, and became distributed in the global dog population within 2 years. A few years later, the virus's original type was replaced by a new genetic and antigenic variant, called CPV-2a. Around 1984 and 2000, virus variants with the single change to Asp or Glu in the VP2 residue 426 were detected (sometimes termed CPV-2b and -2c). The genetic and antigenic changes in the variants have also been correlated with changes in their host range; in particular, in the ability to replicate in cats and also host range differences in canine and other tissue culture cells. CPV-2 variants have been circulating among wild carnivores and have been well-documented in several countries around the world. Here, we have reviewed and summarized the current information about the worldwide distribution and evolution of CPV-2 variants since they emerged, as well as the host ranges they are associated with.
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Affiliation(s)
- Carla Miranda
- Department of Veterinary Clinics, Instituto de Ciências Biomédicas de Abel Salazar (ICBAS), Universidade do Porto, 4050-313 Porto, Portugal.,Centro de Investigação em Biodiversidade e Recursos Genéticos (CIBIO), InBio, Laboratório Associado, Universidade do Porto, 4485-661 Vairão, Portugal
| | - Gertrude Thompson
- Department of Veterinary Clinics, Instituto de Ciências Biomédicas de Abel Salazar (ICBAS), Universidade do Porto, 4050-313 Porto, Portugal.,Centro de Investigação em Biodiversidade e Recursos Genéticos (CIBIO), InBio, Laboratório Associado, Universidade do Porto, 4485-661 Vairão, Portugal
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20
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Abstract
The authors report a field study that investigated the canine parvovirus (CPV) strains present in dogs that developed the disease after being vaccinated. Faecal samples of 78 dogs that have been vaccinated against CPV and later presented with clinical signs suspected of parvovirus infection were used. Fifty (64.1 per cent) samples tested positive by PCR for CPV. No CPV vaccine type was detected. The disease by CPV-2b occurred in older and female dogs when compared with that by CPV-2c. The clinical signs presented by infected dogs were similar when any of both variants were involved. In most cases of disease, the resulting infection by field variants occurred shortly after CPV vaccination. Two dogs that had been subjected to a complete vaccination schedule and presented with clinical signs after 10 days of vaccination, had the CPV-2c variant associated. The phylogenetic studies showed a close relationship of the isolates in vaccinated dogs to European field strains. Despite the limited sample size in this study, the findings point to the significance of the continuous molecular typing of the virus as a tool to monitor the prevalent circulating CPV strains and access the efficacy of current vaccines. Adjustments on the vaccine types to be used may have to be evaluated again according to each epidemiological situation in order to achieve the dog's optimal immune protection against CPV.
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21
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Miranda C, Vieira MJ, Silva E, Carvalheira J, Parrish CR, Thompson G. Genetic Analysis of Feline Panleukopenia Virus Full-length VP2 Gene in Domestic Cats Between 2006-2008 and 2012-2014, Portugal. Transbound Emerg Dis 2016; 64:1178-1183. [DOI: 10.1111/tbed.12483] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Indexed: 01/13/2023]
Affiliation(s)
- C. Miranda
- Instituto de Ciências Biomédicas de Abel Salazar (ICBAS); Universidade do Porto; Porto Portugal
- Rede de Investigação em Biodiversidade e Biologia Evolutiva (CIBIO/InBIO); Laboratório Associado; Universidade do Porto; Vairão Portugal
| | - M. J. Vieira
- Instituto de Ciências Biomédicas de Abel Salazar (ICBAS); Universidade do Porto; Porto Portugal
| | - E. Silva
- Instituto de Ciências Biomédicas de Abel Salazar (ICBAS); Universidade do Porto; Porto Portugal
- Rede de Investigação em Biodiversidade e Biologia Evolutiva (CIBIO/InBIO); Laboratório Associado; Universidade do Porto; Vairão Portugal
| | - J. Carvalheira
- Instituto de Ciências Biomédicas de Abel Salazar (ICBAS); Universidade do Porto; Porto Portugal
- Rede de Investigação em Biodiversidade e Biologia Evolutiva (CIBIO/InBIO); Laboratório Associado; Universidade do Porto; Vairão Portugal
| | - C. R. Parrish
- Baker Institute for Animal Health; Department of Microbiology and Immunology; College of Veterinary Medicine; Cornell University; Ithaca NY USA
| | - G. Thompson
- Instituto de Ciências Biomédicas de Abel Salazar (ICBAS); Universidade do Porto; Porto Portugal
- Rede de Investigação em Biodiversidade e Biologia Evolutiva (CIBIO/InBIO); Laboratório Associado; Universidade do Porto; Vairão Portugal
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22
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Miranda C, Parrish CR, Thompson G. Epidemiological evolution of canine parvovirus in the Portuguese domestic dog population. Vet Microbiol 2016; 183:37-42. [DOI: 10.1016/j.vetmic.2015.11.037] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Revised: 11/25/2015] [Accepted: 11/27/2015] [Indexed: 12/13/2022]
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23
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Miranda C, Carvalheira J, Parrish CR, Thompson G. Factors affecting the occurrence of canine parvovirus in dogs. Vet Microbiol 2015; 180:59-64. [DOI: 10.1016/j.vetmic.2015.08.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2015] [Revised: 08/04/2015] [Accepted: 08/06/2015] [Indexed: 12/01/2022]
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24
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Proksch AL, Hartmann K. [Diagnostic tools for canine parvovirus infection]. TIERAERZTLICHE PRAXIS AUSGABE KLEINTIERE HEIMTIERE 2015; 43:351-7. [PMID: 26403490 DOI: 10.15654/tpk-150354] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 07/21/2015] [Indexed: 11/13/2022]
Abstract
Canine parvovirus (CPV) infection is one of the most important and common infectious diseases in dogs, in particular affecting young puppies when maternal antibodies have waned and vaccine-induced antibodies have not yet developed. The mortality rate remains high. Therefore, a rapid and safe diagnostic tool is essential to diagnose the disease to 1) provide intensive care treatment and 2) to identify virus-shedding animals and thus prevent virus spread. Whilst the detection of antibodies against CPV is considered unsuitable to diagnose the disease, there are several different methods to directly detect complete virus, virus antigen or DNA. Additionally, to test in commercial laboratories, rapid in-house tests based on ELISA are available worldwide. The specificity of the ELISA rapid in-house tests is reported to be excellent. However, results on sensitivity vary and high numbers of false-negative results are commonly reported, which potentially leads to misdiagnosis. Polymerase chain reaction (PCR) is a very sensitive and specific diagnostic tool. It also provides the opportunity to differentiate vaccine strains from natural infection when sequencing is performed after PCR.
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Affiliation(s)
| | - K Hartmann
- Prof. Dr. Katrin Hartmann, Medizinische Kleintierklinik, Ludwig-Maximilians-Universität München, Veterinärstraße 13, 80539 München, E-Mail:
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Influence of clinical and laboratory variables on faecal antigen ELISA results in dogs with canine parvovirus infection. Vet J 2015; 204:304-8. [DOI: 10.1016/j.tvjl.2015.03.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 03/05/2015] [Accepted: 03/07/2015] [Indexed: 11/24/2022]
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26
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Kantere MC, Athanasiou LV, Spyrou V, Kyriakis CS, Kontos V, Chatzopoulos DC, Tsokana CN, Billinis C. Diagnostic performance of a rapid in-clinic test for the detection of Canine Parvovirus under different storage conditions and vaccination status. J Virol Methods 2015; 215-216:52-5. [PMID: 25707551 PMCID: PMC7119840 DOI: 10.1016/j.jviromet.2015.02.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 01/18/2015] [Accepted: 02/02/2015] [Indexed: 11/28/2022]
Abstract
Quick laboratory confirmation of parvoenteritis is important to start treatment. In-clinic tests are quick and simple in use. A positive rapid test result almost certainly indicates the presence of the virus. Vaccination status and storage condition affects the results of the in-clinic test.
Canine parvovirus (CPV) is one of the most common causes of acute haemorrhagic enteritis in young dogs, while clinical diagnosis is often indecisive. The aim of our study was to evaluate the diagnostic accuracy of an in-clinic rapid test in the detection of CPV infection in dogs. To this end, we compared the Rapid Diagnostic Kit of Canine Parvovirus, Coronavirus and Rotavirus antigen (Quicking®) to PCR, which is considered as the most reliable diagnostic method. A total of 78 duplicated faecal samples were collected from diarrhoeic dogs. Vaccination history within a month prior to the onset of diarrhoea was reported for 12 of the sampled dogs. The rapid diagnostic test was performed in 23 of the faecal samples directly, while the rest were placed into a sterile cotton tipped swab suitable for collection and transportation of viruses (Sigma Σ-VCM®) and stored at −20 °C. The sensitivity of the Quicking rapid diagnostic test compared to PCR in the total number of samples, in samples from non-vaccinated dogs and in samples tested directly after collection were 22.22% (95% CI: 13.27–33.57%), 26.67% (95% CI: 16.08–39.66%) and 76.47% (95% CI: 50.10–93.04%) respectively, while the specificity of the test was 100% in any case. In conclusion, negative results do not exclude parvoenteritis from the differential diagnosis, especially in dogs with early vaccination history, but a positive result almost certainly indicates CPV infection. An improved sensitivity may be expected when the test is performed immediately.
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Affiliation(s)
- Maria C Kantere
- Department of Microbiology and Parasitology, Faculty of Veterinary Medicine, University of Thessaly, Greece
| | - Labrini V Athanasiou
- Department of Medicine, Faculty of Veterinary Medicine, University of Thessaly, Greece.
| | - Vassiliki Spyrou
- Department of Animal Production, Technological and Educational Institute, Larissa, Greece
| | - Constantinos S Kyriakis
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA, USA
| | - Vassilios Kontos
- Department of Veterinary Public Health, National School of Public Health, Athens, Greece
| | - Dimitrios C Chatzopoulos
- Department of Microbiology and Parasitology, Faculty of Veterinary Medicine, University of Thessaly, Greece
| | - Constantina N Tsokana
- Department of Microbiology and Parasitology, Faculty of Veterinary Medicine, University of Thessaly, Greece
| | - Charalambos Billinis
- Department of Microbiology and Parasitology, Faculty of Veterinary Medicine, University of Thessaly, Greece
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Kocaturk M, Tvarijonaviciute A, Martinez-Subiela S, Tecles F, Eralp O, Yilmaz Z, Ceron JJ. Inflammatory and oxidative biomarkers of disease severity in dogs with parvoviral enteritis. J Small Anim Pract 2014; 56:119-24. [PMID: 25040669 DOI: 10.1111/jsap.12250] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Revised: 05/26/2014] [Accepted: 05/28/2014] [Indexed: 11/27/2022]
Abstract
OBJECTIVES To study changes in serum C-reactive protein, haptoglobin, ceruloplasmin and albumin concentration, total anti-oxidant capacity and paraoxonase-1 and butyrylcholinesterase activity in dogs with parvoviral enteritis of different degrees of clinical severity. METHODS Prospective study of 9 healthy and 43 dogs with parvoviral enteritis that were classified into mildly, moderately and affected groups. RESULTS Dogs with parvoviral enteritis had a significant increase in C-reactive protein compared with healthy dogs, with an increase of higher magnitude in animals with more severe clinical signs. All dogs with parvoviral enteritis had a significant increase in haptoglobin concentration compared with healthy dogs, but with no difference according to disease severity. There was a decrease in paraoxonase-1 activity in parvoviral enteritis. CLINICAL SIGNIFICANCE Major increases of C-reactive protein concentrations in dogs with parvoviral enteritis are a marker of disease severity. In addition, higher values for anti-oxidants in severe cases compared with mild and moderate cases suggest a possible compensatory anti-oxidant mechanism.
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Affiliation(s)
- M Kocaturk
- Department of Internal Medicine, Faculty of Veterinary Medicine, Uludag University, 16190, Bursa, Turkey
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28
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Miranda C, Parrish CR, Thompson G. Canine parvovirus 2c infection in a cat with severe clinical disease. J Vet Diagn Invest 2014; 26:462-464. [PMID: 24670953 DOI: 10.1177/1040638714528502] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Canine parvovirus 2 (CPV-2) is considered the main pathogen responsible for acute gastroenteritis in dogs, causing vomiting and hemorrhagic enteritis mainly. However, infection in cats by CPV variants causes clinical signs similar to Feline panleukopenia virus. The current study reports a case of CPV-2c in a domestic cat, in Portugal. The findings suggest that more surveys are needed to know the true prevalence and significance of cats in CPV epidemiology worldwide.
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Affiliation(s)
- Carla Miranda
- Department of Veterinary Clinics, Instituto de Ciências Biomédicas de Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal (Miranda, Thompson)Centro de Investigação em Biodiversidade e Recursos Genéticos (CIBIO), InBio, Laboratório Associado, Universidade do Porto, Vairão, Portugal (Miranda, Thompson)Baker Institute for Animal Health, Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, NY (Parrish)
| | - Colin R Parrish
- Department of Veterinary Clinics, Instituto de Ciências Biomédicas de Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal (Miranda, Thompson)Centro de Investigação em Biodiversidade e Recursos Genéticos (CIBIO), InBio, Laboratório Associado, Universidade do Porto, Vairão, Portugal (Miranda, Thompson)Baker Institute for Animal Health, Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, NY (Parrish)
| | - Gertrude Thompson
- Department of Veterinary Clinics, Instituto de Ciências Biomédicas de Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal (Miranda, Thompson)Centro de Investigação em Biodiversidade e Recursos Genéticos (CIBIO), InBio, Laboratório Associado, Universidade do Porto, Vairão, Portugal (Miranda, Thompson)Baker Institute for Animal Health, Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, NY (Parrish)
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29
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Decaro N, Desario C, Billi M, Lorusso E, Colaianni M, Colao V, Elia G, Ventrella G, Kusi I, Bo S, Buonavoglia C. Evaluation of an in-clinic assay for the diagnosis of canine parvovirus. Vet J 2013; 198:504-7. [DOI: 10.1016/j.tvjl.2013.08.032] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 08/27/2013] [Accepted: 08/28/2013] [Indexed: 10/26/2022]
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