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Truyen LH, Flores RS, de Oliveira Santana W, Abreu MB, Brambatti G, Lunge VR, Streck AF. Canine parvovirus type 2 (CPV-2) serological and molecular patterns in dogs with viral gastroenteritis from southern Brazil. Braz J Microbiol 2024; 55:1979-1986. [PMID: 38407780 PMCID: PMC11153423 DOI: 10.1007/s42770-024-01290-5] [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: 09/18/2023] [Accepted: 02/16/2024] [Indexed: 02/27/2024] Open
Abstract
Canine Parvovirus type 2 (CPV-2) is a highly contagious virus that can cause severe systemic disease with gastroenteric symptoms in dogs, particularly in young puppies. Originating from the feline parvovirus in the late 1970s, it swiftly propagated globally, instigating a pandemic in dogs. Despite vaccination advancements, CPV-2 remains a substantial challenge for veterinary professionals and pet owners. This study aimed to contribute knowledge about the current situation of CPV-2 among dogs in southern Brazil. In this study, the sera of 125 dogs (mostly with gastroenteritis symptoms) were screened for antibodies against CPV-2 and their faeces for the virus itself. The results showed that 40% (50/125) of dogs were infected with CPV-2. Most animals (65.5%) had previously been exposed to CPV-2 (with serotitres equal or above 1:40), and only 37.6% had protective antibody titres equal or above 1:80. The findings have also demonstrated that vaccination against CPV-2 significantly reduced the risk of infection, with positive cases decreasing from 56.9% (unvaccinated) to 2.0% (fully vaccinated). Furthermore, the prevalence of CPV-2 decreased as dogs aged, with younger dogs and those with an incomplete or non-existent vaccination history at the highest risk of infection. In conclusion, this study provides valuable insight into the prevalence and risk factors associated with CPV-2 infection in dogs in southern Brazil, thereby providing valuable knowledge for the improvement of veterinary care and pet health.
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Affiliation(s)
| | - Rafael Sartori Flores
- Diagnostic Laboratory of Veterinary Medicine, Biotechnology Institute, Universidade de Caxias Do Sul (UCS), Caxias Do Sul, Rio Grande Do Sul, Brazil
| | - Weslei de Oliveira Santana
- Diagnostic Laboratory of Veterinary Medicine, Biotechnology Institute, Universidade de Caxias Do Sul (UCS), Caxias Do Sul, Rio Grande Do Sul, Brazil
| | - Muriel Becker Abreu
- Diagnostic Laboratory of Veterinary Medicine, Biotechnology Institute, Universidade de Caxias Do Sul (UCS), Caxias Do Sul, Rio Grande Do Sul, Brazil
| | - Gustavo Brambatti
- Diagnostic Laboratory of Veterinary Medicine, Biotechnology Institute, Universidade de Caxias Do Sul (UCS), Caxias Do Sul, Rio Grande Do Sul, Brazil
| | - Vagner Ricardo Lunge
- Diagnostic Laboratory of Veterinary Medicine, Biotechnology Institute, Universidade de Caxias Do Sul (UCS), Caxias Do Sul, Rio Grande Do Sul, Brazil
| | - André Felipe Streck
- Diagnostic Laboratory of Veterinary Medicine, Biotechnology Institute, Universidade de Caxias Do Sul (UCS), Caxias Do Sul, Rio Grande Do Sul, Brazil.
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Rehme T, Hartmann K, Bergmann M. [Parvovirus infections in cats in animal shelters]. TIERARZTLICHE PRAXIS. AUSGABE K, KLEINTIERE/HEIMTIERE 2023; 51:107-115. [PMID: 37230115 DOI: 10.1055/a-2065-8203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Due to widespread vaccination programs against feline panleukopenia virus (FPV), the disease associated with this virus infection, feline panleukopenia, is rarely seen in privately owned cats in Germany. In contrast, the situation in animal shelters differs due to the constant intake of new cats that are often unprotected. In such facilities, panleukopenia outbreaks are common and often accompanied by a high number of fatalities. Due to the high contagiosity of the virus, some shelters do not accept cats with clinical signs suspicious for panleukopenia, since these animals can pose a risk to the shelter population. However, not only cats with panleukopenia shed parvovirus, but also healthy, asymptomatic cats can and thus contribute to risk of infection. Nevertheless, the risk for panleukopenia outbreaks in animal shelters can be reduced by rigorous outbreak management. This includes hygiene measures using correctly applied cleaning and disinfection protocols, quarantine measures, separate isolation units, as well as specific prophylactic measures, such as identification of infected animals and immunization of susceptible groups.
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Affiliation(s)
- Teresa Rehme
- Medizinische Kleintierklinik, Ludwig-Maximilians-Universität München
| | - Katrin Hartmann
- Medizinische Kleintierklinik, Ludwig-Maximilians-Universität München
| | - Michèle Bergmann
- Medizinische Kleintierklinik, Ludwig-Maximilians-Universität München
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Carrai M, Decaro N, Van Brussel K, Dall'Ara P, Desario C, Fracasso M, Šlapeta J, Colombo E, Bo S, Beatty JA, Meers J, Barrs VR. Canine parvovirus is shed infrequently by cats without diarrhoea in multi-cat environments. Vet Microbiol 2021; 261:109204. [PMID: 34399298 DOI: 10.1016/j.vetmic.2021.109204] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 08/06/2021] [Indexed: 01/24/2023]
Abstract
Whether subclinical shedding of canine parvovirus (CPV) by cats might contribute to the epidemiology of canine CPV infections, particularly in facilities housing both cats and dogs, requires clarification. Conflicting results are reported to date. Using conventional PCR (cPCR) to amplify the VP2 gene, shedding of the CPV variants (CPV-2a, 2b, 2c) by healthy cats in multi-cat environments was reportedly common in Europe but rare in Australia. The aim of this study was to determine whether low-level faecal CPV shedding occurs in multi-cat environments in Australia and Italy using a TaqMan real-time PCR to detect Carnivore protoparvovirus 1 (CPV and feline parvovirus, FPV) DNA, and minor-groove binder probe real-time PCR assay to differentiate FPV and CPV types and to characterize CPV variants. In total, 741 non-diarrhoeic faecal samples from shelters in Australia (n = 263) and from shelters or cat colonies in Italy (n = 478) were tested. Overall, Carnivore protoparvovirus 1 DNA was detected in 49 of 741 (6.61 %) samples. Differentiation was possible for 31 positive samples. FPV was most common among positive samples (28/31, 90.3 %). CPV was detected in 4/31 samples (12.9 %) including CPV-2a in one sample, CPV-2b in another and co-infections of FPV/CPV-2b and CPV-2a/CPV-2b in the remaining two samples. A high rate of subclinical FPV infection was detected in one shelter during an outbreak of feline panleukopenia, during which 21 of 22 asymptomatic cats (95.5 %) sampled were shedding FPV. Faecal shedding of CPV by cats in multi-cat environments is uncommon suggesting that domestic cats are not significant reservoirs of CPV.
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Affiliation(s)
- Maura Carrai
- Sydney School of Veterinary Science, Faculty of Science, The University of Sydney, New South Wales 2006, Australia; Jockey Club College of Veterinary Medicine & Life Sciences, City University of Hong Kong, Kowloon Tong, Hong Kong Special Administrative Region, China.
| | - Nicola Decaro
- Department of Veterinary Medicine, University of Bari, Valenzano, Italy.
| | - Kate Van Brussel
- Sydney School of Veterinary Science, Faculty of Science, The University of Sydney, New South Wales 2006, Australia.
| | - Paola Dall'Ara
- Department of Veterinary Medicine, University of Milan, Lodi, Italy.
| | - Costantina Desario
- Department of Veterinary Medicine, University of Bari, Valenzano, Italy.
| | - Marco Fracasso
- Department of Veterinary Medicine, University of Bari, Valenzano, Italy.
| | - Jan Šlapeta
- Sydney School of Veterinary Science, Faculty of Science, The University of Sydney, New South Wales 2006, Australia.
| | - Elena Colombo
- Department of Veterinary Medicine, University of Milan, Lodi, Italy.
| | - Stefano Bo
- Ambulatorio Vetarinario Associato, Via Fratelli Calandra, 2, 10123 Torino, Italy.
| | - Julia A Beatty
- Sydney School of Veterinary Science, Faculty of Science, The University of Sydney, New South Wales 2006, Australia; Jockey Club College of Veterinary Medicine & Life Sciences, City University of Hong Kong, Kowloon Tong, Hong Kong Special Administrative Region, China.
| | - Joanne Meers
- University of Queensland, School of Veterinary Science, Gatton, Queensland 4343, Australia.
| | - Vanessa R Barrs
- Sydney School of Veterinary Science, Faculty of Science, The University of Sydney, New South Wales 2006, Australia; Jockey Club College of Veterinary Medicine & Life Sciences, City University of Hong Kong, Kowloon Tong, Hong Kong Special Administrative Region, China.
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Emerging Parvoviruses in Domestic Cats. Viruses 2021; 13:v13061077. [PMID: 34200079 PMCID: PMC8229815 DOI: 10.3390/v13061077] [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: 05/17/2021] [Revised: 06/03/2021] [Accepted: 06/04/2021] [Indexed: 11/16/2022] Open
Abstract
Parvovirus infections in cats have been well known for around 100 years. Recently, the use of molecular assays and metagenomic approaches for virus discovery and characterization has led to the detection of novel parvovirus lineages and/or species infecting the feline host. However, the involvement of emerging parvoviruses in the onset of gastroenteritis or other feline diseases is still uncertain.
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Kelman M, Norris JM, Barrs VR, Ward MP. A history of canine parvovirus in Australia: what can we learn? Aust Vet J 2020; 98:504-510. [PMID: 32754949 DOI: 10.1111/avj.13002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 06/28/2020] [Accepted: 06/28/2020] [Indexed: 11/29/2022]
Abstract
Canine parvovirus (CPV) has been reported throughout the world since the late 1970s. Published information was reviewed to draw insights into the epidemiology, pathogenesis, diagnosis, treatment and outcomes of CPV disease in Australia and the role of scientific research on CPV occurrence, with key research discoveries and knowledge gaps identified. Australian researchers contributed substantially to early findings, including the first reported cases of parvoviral myocarditis, investigations into disease aetiopathogenesis, host and environmental risk factors and links between CPV and feline panleukopenia. Two of the world's first CPV serological surveys were conducted in Australia and a 1980 national veterinary survey of Australian and New Zealand dogs revealed 6824 suspected CPV cases and 1058 deaths. In 2010, an Australian national disease surveillance system was launched; 4940 CPV cases were reported between 2009 and 2014, although underreporting was likely. A 2017 study estimated national incidence to be 4.12 cases per 1000 dogs, and an annual case load of 20,110 based on 4219 CPV case reports in a survey of all Australian veterinary clinics, with a 23.5% response rate. CPV disease risk factors identified included socioeconomic disadvantage, geographical location (rural/remote), season (summer) and rainfall (recent rain and longer dry periods both increasing risk). Age <16 weeks was identified as a risk factor for vaccination failure. Important knowledge gaps exist regarding national canine and feline demographic and CPV case data, vaccination coverage and population immunity, CPV transmission between owned dogs and other carnivore populations in Australia and the most effective methods to control epizootics.
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Affiliation(s)
- M Kelman
- Sydney School of Veterinary ScienceThe University of Sydney, Sydney, New South Wales, 2006, Australia
| | - J M Norris
- Sydney School of Veterinary ScienceThe University of Sydney, Sydney, New South Wales, 2006, Australia
| | - V R Barrs
- Sydney School of Veterinary ScienceThe University of Sydney, Sydney, New South Wales, 2006, Australia
| | - M P Ward
- Sydney School of Veterinary ScienceThe University of Sydney, Sydney, New South Wales, 2006, Australia
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Abstract
Feline panleukopenia (FPL) is caused by a Carnivore protoparvovirus infection. Feline parvovirus (FPV) causes most cases. When Canine parvovirus 2 (CPV-2) first emerged, it could not replicate in cats. All current CPV variants (CPV-2a-c) can infect cats to cause subclinical disease or FPL. Feline panleukopenia has re-emerged in Australia in shelter cats associated with failure to vaccinate. Parvoviruses can remain latent in mononuclear cells post-infection. Molecular methods such as polymerase chain reaction are used to determine the infecting strain. Current perspectives on causes, epidemiology, diagnosis, treatment, prognostic indicators, and management of outbreaks in shelters are reviewed.
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Affiliation(s)
- Vanessa R Barrs
- Sydney School of Veterinary Science, Faculty of Science, and Marie Bashir Institute of Infectious Diseases & Biosecurity, University of Sydney, New South Wales 2006, Australia.
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