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Correia B, Magalhães A, Rocha L, Cardoso I, Ferreira RRF, Mesa-Sanchez I. Prevalence of subclinical infectious agents in a blood donor population tested on every donation. J Small Anim Pract 2024; 65:176-180. [PMID: 38185815 DOI: 10.1111/jsap.13698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 08/07/2023] [Accepted: 12/06/2023] [Indexed: 01/09/2024]
Abstract
OBJECTIVES This study aimed to assess the prevalence of blood-borne infectious agents in healthy, client-owned dogs from a blood donor population in Portugal and Spain, and to address the importance of a screening protocol on every donation. MATERIALS AND METHODS Client-owned healthy dogs were tested before each donation on a veterinary blood bank. Blood samples from new potential donors, and from regular donors, were tested by real-time polymerase chain reaction for Leishmania species, Ehrlichia species, Brucella species, Babesia species and Anaplasma species Serological tests were also performed for Leishmania species, Ehrlichia species and Dirofilaria immitis. All donors were tested for every infectious agent in each donation. RESULTS The study found that out of a total of 8036 donors and 35,120 samples tested, 3.9% of blood donors tested positive for at least one of the agents, with the most prevalent being Anaplasma species (2.1%). Serological tests also revealed positive results in 14.0% of donors, with the highest percentage for Leishmania species (7.7%). Moreover, the study found that 28.2% of positive results were from dogs with negative results in donations performed 3 to 12 months before, and 18.0% of positive results were recent infections. CLINICAL SIGNIFICANCE These findings indicate a high prevalence of infectious agents in seemingly healthy, selected dogs eligible to become blood donors in the Iberian Peninsula, highlighting the importance of regular testing on every donation. This study emphasises the importance of a regular screening protocol for every donation instead of annual testing, as is commonly performed in veterinary medicine.
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Affiliation(s)
- B Correia
- Banco de Sangue Animal (NIV - Núcleo de Investigação Veterinária), Rua Dr. Eduardo Santos Silva, n°261, AH, 4200-283, Porto, Portugal
| | - A Magalhães
- Banco de Sangue Animal (NIV - Núcleo de Investigação Veterinária), Rua Dr. Eduardo Santos Silva, n°261, AH, 4200-283, Porto, Portugal
| | - L Rocha
- Banco de Sangue Animal (NIV - Núcleo de Investigação Veterinária), Rua Dr. Eduardo Santos Silva, n°261, AH, 4200-283, Porto, Portugal
| | - I Cardoso
- BSA - Banco de Sangue Animal, Rua de João de Deus, n°741, 4100-462, Porto, Portugal
| | - R R F Ferreira
- BSA - Banco de Sangue Animal, Rua de João de Deus, n°741, 4100-462, Porto, Portugal
| | - I Mesa-Sanchez
- BSA - Banco De Sangre Animal, Passatge Rovira I Virgili No. 9 Sabadell, 08205, Barcelona, Spain
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Zygner W, Gójska-Zygner O, Bartosik J, Górski P, Karabowicz J, Kotomski G, Norbury LJ. Canine Babesiosis Caused by Large Babesia Species: Global Prevalence and Risk Factors-A Review. Animals (Basel) 2023; 13:2612. [PMID: 37627403 PMCID: PMC10451873 DOI: 10.3390/ani13162612] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 07/19/2023] [Accepted: 08/11/2023] [Indexed: 08/27/2023] Open
Abstract
Canine babesiosis is a disease caused by protozoan pathogens belonging to the genus Babesia. Four species of large Babesia cause canine babesiosis (B. canis, B. rossi, B. vogeli, and the informally named B. coco). Although canine babesiosis has a worldwide distribution, different species occur in specific regions: B. rossi in sub-Saharan Africa, B. canis in Europe and Asia, and B. coco in the Eastern Atlantic United States, while B. vogeli occurs in Africa, southern parts of Europe and Asia, northern Australia, southern regions of North America, and in South America. B. vogeli is the most prevalent large Babesia species globally. This results from its wide range of monotropic vector species, the mild or subclinical nature of infections, and likely the longest evolutionary association with dogs. The most important risk factors for infection by large Babesia spp. include living in rural areas, kennels or animal shelters, or regions endemic for the infection, the season of the year (which is associated with increased tick activity), infestation with ticks, and lack of treatment with acaricides.
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Affiliation(s)
- Wojciech Zygner
- Division of Parasitology and Parasitic Diseases, Department of Preclinical Sciences, Institute of Veterinary Medicine, Warsaw University of Life Sciences—SGGW, Ciszewskiego 8, 02-786 Warsaw, Poland; (J.B.); (P.G.); (J.K.)
| | - Olga Gójska-Zygner
- Labros Veterinary Clinic, Św. Bonifacego 92, 02-940 Warsaw, Poland; (O.G.-Z.); (G.K.)
| | - Justyna Bartosik
- Division of Parasitology and Parasitic Diseases, Department of Preclinical Sciences, Institute of Veterinary Medicine, Warsaw University of Life Sciences—SGGW, Ciszewskiego 8, 02-786 Warsaw, Poland; (J.B.); (P.G.); (J.K.)
| | - Paweł Górski
- Division of Parasitology and Parasitic Diseases, Department of Preclinical Sciences, Institute of Veterinary Medicine, Warsaw University of Life Sciences—SGGW, Ciszewskiego 8, 02-786 Warsaw, Poland; (J.B.); (P.G.); (J.K.)
| | - Justyna Karabowicz
- Division of Parasitology and Parasitic Diseases, Department of Preclinical Sciences, Institute of Veterinary Medicine, Warsaw University of Life Sciences—SGGW, Ciszewskiego 8, 02-786 Warsaw, Poland; (J.B.); (P.G.); (J.K.)
| | - Grzegorz Kotomski
- Labros Veterinary Clinic, Św. Bonifacego 92, 02-940 Warsaw, Poland; (O.G.-Z.); (G.K.)
| | - Luke J. Norbury
- Department of Biosciences and Food Technology, School of Science, STEM College, RMIT University, Bundoora, VIC 3083, Australia;
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Walton J. Companion animal blood banking: the importance of raising awareness and improving donor retention. Vet Rec 2023; 193:74-76. [PMID: 37477311 DOI: 10.1002/vetr.3289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
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Sebzda MK, Kauffman LK. Update on Brucella canis: Understanding the Past and Preparing for the Future. Vet Clin North Am Small Anim Pract 2023:S0195-5616(23)00075-X. [PMID: 37385876 DOI: 10.1016/j.cvsm.2023.05.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
The genus Brucella is known by veterinarians as a primary cause of reproductive diseases. It is widely known to cause financial devastation in livestock species, and is lesser known as a problem for dog breeders and fanciers with similar reproductive diseases seen in dogs. Now there are concerns about the dispersal of Brucella canis into countries that have enjoyed a fairly low incidence, through the importation of dogs from endemic countries. B canis, much like Brucella abortus, suis or mellitensis, is zoonotic and handling or working with infected dogs can lead to human disease. Only within the last few decades has the risk of brucellosis in dogs, and the people who own and work with them, been more fully acknowledged. This review will focus on new information that has been obtained since our last B canis article in 2018. Readers are encouraged to look to that article for information not presented within this update. Current B canis epidemiology along with a complete review of diagnostic testing options will be covered. Regulations for the international movement of dogs will be discussed in addition to concerns for increased zoonosis potential. Future goals would include better management of this disease including proposed screening of all imported dogs. Canine brucellosis prevention, owner and shelter/rescue education along with proposed therapies for the future will also be explored.
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Affiliation(s)
- Mary K Sebzda
- Newport Harbor Animal Hospital, 125 Mesa Drive, Costa Mesa, CA 92627, USA; Western University of Health Sciences, Pomona, CA 91766, USA
| | - Lin K Kauffman
- Prairie View Animal Hospital, 1830 Southeast Princeton Drive Suite A, Grimes, IA 50111, USA.
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Huggins LG, Baydoun Z, Mab R, Khouri Y, Schunack B, Traub RJ, Colella V. Transmission of haemotropic mycoplasma in the absence of arthropod vectors within a closed population of dogs on ectoparasiticides. Sci Rep 2023; 13:10143. [PMID: 37349533 PMCID: PMC10287653 DOI: 10.1038/s41598-023-37079-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 06/15/2023] [Indexed: 06/24/2023] Open
Abstract
Dog-infecting haemotropic mycoplasmas (haemoplasmas), such as Mycoplasma haemocanis and Candidatus Mycoplasma haematoparvum are common blood-borne pathogens of canines that can potentially inflict a substantial burden of disease, particularly in immunosuppressed individuals. Nonetheless, the transmission of these pathogens remains debated as more evidence emerges that they may not be transmitted by vectors, but instead use alternative methods such as aggressive interactions and vertical transmission. Here, we treated forty dogs with two different topically-acting ectoparasiticide products able to prevent vector-borne pathogen infections during an 8-month community trial in Cambodia. A total absence of ectoparasites were observed at all time points, and no new infections caused by pathogens confirmed as being vectorially-transmitted were detected, i.e., Babesia vogeli, Ehrlichia canis, Anaplasma platys, and Hepatozoon canis. Conversely, the number of haemoplasma infections in dogs on both ectoparasiticides rose significantly, with an incidence of 26 infections per 100 dogs at risk per year, providing strong evidence of non-vectorial transmission. Over the study period, dog aggression and fighting were frequently observed, highlighting a different potential mode of transmission. This study presents the first robust evidence that canine haemoplasmas may be transmitted without arthropod vectors drawing attention to the need for new methods to prevent their transmission.
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Affiliation(s)
- Lucas G Huggins
- Melbourne Veterinary School, Faculty of Science, University of Melbourne, Parkville, VIC, 3050, Australia.
| | - Zahida Baydoun
- Animal Mama Veterinary Hospital, Phnom Penh, 12312, Cambodia
| | - Ron Mab
- Animal Mama Veterinary Hospital, Phnom Penh, 12312, Cambodia
| | - Yulia Khouri
- Animal Mama Veterinary Hospital, Phnom Penh, 12312, Cambodia
| | | | - Rebecca J Traub
- Melbourne Veterinary School, Faculty of Science, University of Melbourne, Parkville, VIC, 3050, Australia
| | - Vito Colella
- Melbourne Veterinary School, Faculty of Science, University of Melbourne, Parkville, VIC, 3050, Australia.
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Huggins LG, Koehler AV, Gasser RB, Traub RJ. Advanced approaches for the diagnosis and chemoprevention of canine vector-borne pathogens and parasites-Implications for the Asia-Pacific region and beyond. ADVANCES IN PARASITOLOGY 2023; 120:1-85. [PMID: 36948727 DOI: 10.1016/bs.apar.2022.12.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Vector-borne pathogens (VBPs) of canines are a diverse range of infectious agents, including viruses, bacteria, protozoa and multicellular parasites, that are pernicious and potentially lethal to their hosts. Dogs across the globe are afflicted by canine VBPs, but the range of different ectoparasites and the VBPs that they transmit predominate in tropical regions. Countries within the Asia-Pacific have had limited prior research dedicated to exploring the epidemiology of canine VBPs, whilst the few studies that have been conducted show VBP prevalence to be high, with significant impacts on dog health. Moreover, such impacts are not restricted to dogs, as some canine VBPs are zoonotic. We reviewed the status of canine VBPs in the Asia-Pacific, with particular focus on nations in the tropics, whilst also investigating the history of VBP diagnosis and examining recent progress in the field, including advanced molecular methods, such as next-generation sequencing (NGS). These tools are rapidly changing the way parasites are detected and discovered, demonstrating a sensitivity equal to, or exceeding that of, conventional molecular diagnostics. We also provide a background to the armoury of chemopreventive products available for protecting dogs from VBP. Here, field-based research within high VBP pressure environments has underscored the importance of ectoparasiticide mode of action on their overall efficacy. The future of canine VBP diagnosis and prevention at a global level is also explored, highlighting how evolving portable sequencing technologies may permit diagnosis at point-of-care, whilst further research into chemopreventives will be essential if VBP transmission is to be effectively controlled.
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Affiliation(s)
- Lucas G Huggins
- Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, The University of Melbourne, Parkville, VIC, Australia.
| | - Anson V Koehler
- Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, The University of Melbourne, Parkville, VIC, Australia
| | - Robin B Gasser
- Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, The University of Melbourne, Parkville, VIC, Australia
| | - Rebecca J Traub
- Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, The University of Melbourne, Parkville, VIC, Australia
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Taber R, Pankowski A, Ludwig AL, Jensen M, Magsamen V, Lashnits E. Bartonellosis in Dogs and Cats, an Update. Vet Clin North Am Small Anim Pract 2022; 52:1163-1192. [DOI: 10.1016/j.cvsm.2022.06.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Dear JD, Birkenheuer A. Babesia in North America. Vet Clin North Am Small Anim Pract 2022; 52:1193-1209. [DOI: 10.1016/j.cvsm.2022.07.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Hemotropic Mycoplasma. Vet Clin North Am Small Anim Pract 2022; 52:1319-1340. [DOI: 10.1016/j.cvsm.2022.06.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Nury C, Blais MC, Arsenault J. Risk of transmittable blood-borne pathogens in blood units from blood donor dogs in Canada. J Vet Intern Med 2021; 35:1316-1324. [PMID: 33960531 PMCID: PMC8162595 DOI: 10.1111/jvim.16139] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 04/09/2021] [Accepted: 04/15/2021] [Indexed: 12/14/2022] Open
Abstract
Background Canine blood donors can be infected by various vector‐borne or other pathogens that could be an important cause of morbidity and death in transfusion recipients. Hypothesis/Objectives To estimate and predict positivity to transmittable blood‐borne pathogens in blood units collected from blood donor dogs in Canada. Animals Six thousand one hundred and fifty blood units from 1914 active blood donors registered to the Canadian Animal Blood Bank (CABB) between March 2010 and December 2016. Methods A registry‐based retrospective study. Blood units were screened by SNAP 4Dx/4Dx Plus and PCR panel tests. Information on blood donors and test results were extracted from multiple databases and collated. Logistic regressions were used to predict blood unit positivity. Results Of 1779 blood units, 0.56% were antibody‐positive for Anaplasma phagocytophilum/platys and 0% for Ehrlichia canis/ewingii. After exclusion of antibody‐positive units to Anaplasma spp., 1.1% of 6140 blood units were PCR‐positive to Anaplasma phagocytophilum, Bartonella spp., Brucella canis, “Candidatus Mycoplasma haematoparvum,” Mycoplasma haemocanis, or a combination of these pathogens. Babesia spp., Ehrlichia spp., and Leishmania spp. were not detected. Units from the first blood collection from a dog had higher odds of testing PCR‐positive (P < .001) for at least 1 pathogen than units from subsequent collections. Conclusions and Clinical Importance Although our study indicates a low probability of detecting blood‐borne pathogen in blood units collected by this Canadian blood bank, the presence of positive units highlights the importance of the preemptive identification and screening of blood units from healthy blood donors for safe blood banking, especially in first‐time donors.
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Affiliation(s)
- Charlotte Nury
- Department of Pathology and Microbiology, Faculté de médecine vétérinaire, Université de Montréal, Saint-Hyacinthe, Québec, Canada
| | - Marie-Claude Blais
- Department of Clinical Sciences, Faculté de médecine vétérinaire, Université de Montréal, Saint-Hyacinthe, Québec, Canada
| | - Julie Arsenault
- Department of Pathology and Microbiology, Faculté de médecine vétérinaire, Université de Montréal, Saint-Hyacinthe, Québec, Canada
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