Ian Kirimi Daniel , Maureen A. Kelly , Emily Orr , Hassan Hakimi , Rafael A.N. Ramos , Meriam N. Saleh , Jobin J. Kattoor , Rebecca P. Wilkes , Guilherme G. Verocai
{"title":"Targeted next-generation sequencing reveals hemotropic mycoplasmas, Bartonella spp., and Babesia in shelter dogs from Texas, USA","authors":"Ian Kirimi Daniel , Maureen A. Kelly , Emily Orr , Hassan Hakimi , Rafael A.N. Ramos , Meriam N. Saleh , Jobin J. Kattoor , Rebecca P. Wilkes , Guilherme G. Verocai","doi":"10.1016/j.vprsr.2025.101297","DOIUrl":null,"url":null,"abstract":"<div><div>The screening of vector-borne pathogens (VBPs) in shelter dog populations is crucial for early detection and informs proper management and control efforts. In this study, we used a targeted next-generation sequencing (tNGS) assay to detect VBPs in shelter dogs from Texas. Genomic DNA from whole blood (<em>n</em> = 153) was extracted and subjected to the tNGS assay to search for 15 pathogens. A total of 26.1 % (<em>n</em> = 40/153) of dogs were positive for at least one pathogen, with 80 % (32/40) and 20 % (8/40) samples positive for single and co-infections, respectively. Considering single infections, <em>Mycoplasma haemocanis</em> (13.0 %; <em>n</em> = 20/153) was the most detected pathogen, followed by <em>Bartonella vinsonii</em> subsp. <em>berkhoffii</em> (5.8 %; <em>n</em> = 9/153), and <em>Candidatus</em> Mycoplasma haematoparvum (1.9 %; <em>n</em> = 3/153). Among co-infections, <em>Cand</em>. M. haematoparvum + <em>M. haemocanis</em> (2.6 %; <em>n</em> = 4/153), followed by <em>B. v. berkhoffii</em> + <em>M. haemocanis</em> (1.3 %; <em>n</em> = 2/153), <em>B. v. berkhoffii</em> + <em>Cand</em>. M. haematoparvum (0.7 %; <em>n</em> = 1/153) and <em>B. vulpes</em> + <em>M. haemocanis</em> (0.7 %; n = 1/153). We did not find any association between demographic variables (e.g., age, sex, spayed or neutered status, and breed) and pathogen detection. This study underscores the importance of hemotropic mycoplasma and co-infecting pathogen surveillance in shelter dogs and emphasizes the need for robust and comprehensive assays that allow the simultaneous detection of multiple canine VBPs. Additionally, based on the detection of some pathogens with zoonotic potential, prevention strategies, including comprehensive screenings and targeted biosecurity measures, are recommended for minimizing the risk of exposure to their future owners.</div></div>","PeriodicalId":23600,"journal":{"name":"Veterinary parasitology, regional studies and reports","volume":"63 ","pages":"Article 101297"},"PeriodicalIF":1.4000,"publicationDate":"2025-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Veterinary parasitology, regional studies and reports","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2405939025001054","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PARASITOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
The screening of vector-borne pathogens (VBPs) in shelter dog populations is crucial for early detection and informs proper management and control efforts. In this study, we used a targeted next-generation sequencing (tNGS) assay to detect VBPs in shelter dogs from Texas. Genomic DNA from whole blood (n = 153) was extracted and subjected to the tNGS assay to search for 15 pathogens. A total of 26.1 % (n = 40/153) of dogs were positive for at least one pathogen, with 80 % (32/40) and 20 % (8/40) samples positive for single and co-infections, respectively. Considering single infections, Mycoplasma haemocanis (13.0 %; n = 20/153) was the most detected pathogen, followed by Bartonella vinsonii subsp. berkhoffii (5.8 %; n = 9/153), and Candidatus Mycoplasma haematoparvum (1.9 %; n = 3/153). Among co-infections, Cand. M. haematoparvum + M. haemocanis (2.6 %; n = 4/153), followed by B. v. berkhoffii + M. haemocanis (1.3 %; n = 2/153), B. v. berkhoffii + Cand. M. haematoparvum (0.7 %; n = 1/153) and B. vulpes + M. haemocanis (0.7 %; n = 1/153). We did not find any association between demographic variables (e.g., age, sex, spayed or neutered status, and breed) and pathogen detection. This study underscores the importance of hemotropic mycoplasma and co-infecting pathogen surveillance in shelter dogs and emphasizes the need for robust and comprehensive assays that allow the simultaneous detection of multiple canine VBPs. Additionally, based on the detection of some pathogens with zoonotic potential, prevention strategies, including comprehensive screenings and targeted biosecurity measures, are recommended for minimizing the risk of exposure to their future owners.
期刊介绍:
Veterinary Parasitology: Regional Studies and Reports focuses on aspects of veterinary parasitology that are of regional concern, which is especially important in this era of climate change and the rapid and often unconstrained travel of people and animals. Relative to regions, this journal will accept papers of the highest quality dealing with all aspects of disease prevention, pathology, treatment, epidemiology, and control of parasites within the field of veterinary medicine. Also, case reports will be considered as they add to information related to local disease and its control; such papers must be concise and represent appropriate medical intervention. Papers on veterinary parasitology from wildlife species are acceptable, but only if they relate to the practice of veterinary medicine. Studies on vector-borne bacterial and viral agents are suitable, but only if the paper deals with vector transmission of these organisms to domesticated animals. Studies dealing with parasite control by means of natural products, both in vivo and in vitro, are more suited for one of the many journals that now specialize in papers of this type. However, due to the regional nature of much of this research, submissions may be considered based upon a case being made by the author(s) to the Editor. Circumstances relating to animal experimentation must meet the International Guiding Principles for Biomedical Research Involving Animals as issued by the Council for International Organizations of Medical Sciences (obtainable from: Executive Secretary C.I.O.M.S., c/o W.H.O., Via Appia, CH-1211 Geneva 27, Switzerland).