Analyze Diet
Tropical animal health and production2025; 57(5); 225; doi: 10.1007/s11250-025-04465-w

Confirmation of the presence of Hemotropic Mycoplasma species in working equids from Veracruz, Mexico.

Abstract: Hemotropic mycoplasmas (HM) are emerging pathogens known to infect a wide range of mammals, including ungulates like horses. These infections can lead to severe haematological conditions, posing a threat to animal health and welfare. Recent studies have begun shedding light on the prevalence and impact of HM on horse populations worldwide. For instance, in Germany, Iran, Nigeria, and Brazil, at least three species of HM have been identified in horses, with a lack in knowledge in Latin American countries like Mexico. Our research aims to fill a crucial knowledge gap regarding the presence of HM in equine populations in the coastal state of Veracruz, Mexico. We collected blood samples from 134 horses and extracted genomic DNA, to target a fragment of 900 bp of the 16S-rDNA gene of HM for amplification and sequencing. Three animals (2.24% = 3/134) tested positive for the presence of HMs. Through phylogenetic reconstruction, the identity of the recovered HMs could be confirmed, providing insight into the specific species present in the equine population. The detection of Candidatus Mycoplasma haemovis and Mycoplasma haemocanis in three horses from the municipalities of Alvarado and Vega de Alatorre highlights the presence of these pathogens in the studied area. This finding not only contributes to the understanding of HM distribution in Mexico and the Mesoamerican region, but also underscores the need for further research and surveillance efforts to monitor and manage these infections in equine populations.
Publication Date: 2025-05-19 PubMed ID: 40388007PubMed Central: 6366081DOI: 10.1007/s11250-025-04465-wGoogle Scholar: Lookup
The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
  • Journal Article

Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

The research article is about a study conducted to identify the presence of Hemotropic Mycoplasma species in the horse population in Veracruz, Mexico. It discusses the collection and analysis of blood samples from 134 horses and reveals the detection of Hemotropic Mycoplasma species in three horses.

Objective and Methodology

  • The researchers aimed to investigate the presence of Hemotropic mycoplasmas (HM), which are emerging pathogens known to infect numerous mammals including horses, in the equine population of Veracruz, Mexico. This is critical given that there’s a gap in the knowledge around HM infections in Latin American countries like Mexico.
  • To achieve this, they collected blood samples from 134 horses and extracted genomic DNA from these samples.
  • The isolated DNA was then used to amplify and sequence a specific fragment of the 16S-rDNA gene of Hemotropic Mycoplasma for identification.

Findings

  • Upon analysis, it was found that three out of the 134 horses (approximately 2.24%) tested positive for the presence of Hemotropic mycoplasma species.
  • The researchers were able to confirm the identity of the Hemotropic mycoplasma species present in the equine population using phylogenetic reconstruction.
  • The specific Hemotropic Mycoplasma species detected were Candidatus Mycoplasma haemovis and Mycoplasma haemocanis. These were found in three horses from the municipalities of Alvarado and Vega de Alatorre.

Significance

  • This research has identified that Hemotropic Mycoplasma species are present in the horse population in certain regions of Veracruz, Mexico.
  • The findings contribute to the understanding of Hemotropic mycoplasma distribution in Mexico and the Mesoamerican region. This can aid in planning for equine health and welfare measures.
  • The detection of these pathogens also emphasises the need for more research and surveillance to effectively monitor and manage these infections in the equine populations.

Cite This Article

APA
Ballados-González GG, Cruz-Romero A, Martínez-Hernández JM, Aguilar-Domínguez M, Vieira RFC, Grostieta E, Becker I, Sánchez-Montes S. (2025). Confirmation of the presence of Hemotropic Mycoplasma species in working equids from Veracruz, Mexico. Trop Anim Health Prod, 57(5), 225. https://doi.org/10.1007/s11250-025-04465-w

Publication

ISSN: 1573-7438
NlmUniqueID: 1277355
Country: United States
Language: English
Volume: 57
Issue: 5
Pages: 225

Researcher Affiliations

Ballados-González, Gerardo G
  • Facultad de Medicina Veterinaria y Zootecnia, Universidad Veracruzana, Miguel Ángel de Quevedo S/N, Esq. Yáñez, Veracruz, 91710, México.
Cruz-Romero, Anabel
  • Facultad de Medicina Veterinaria y Zootecnia, Universidad Veracruzana, Miguel Ángel de Quevedo S/N, Esq. Yáñez, Veracruz, 91710, México. anabcruz@uv.mx.
Martínez-Hernández, José M
  • Facultad de Medicina Veterinaria y Zootecnia, Universidad Veracruzana, Miguel Ángel de Quevedo S/N, Esq. Yáñez, Veracruz, 91710, México. manuelmartinez@uv.mx.
Aguilar-Domínguez, Mariel
  • Facultad de Medicina Veterinaria y Zootecnia, Universidad Veracruzana, Miguel Ángel de Quevedo S/N, Esq. Yáñez, Veracruz, 91710, México.
Vieira, Rafael F C
  • Department of Epidemiology and Community Health, The University of North Carolina at Charlotte, Charlotte, NC, USA.
  • Center for Computational Intelligence to Predict Health and Environmental Risks (CIPHER), The University of North Carolina at Charlotte, Charlotte, NC, USA.
Grostieta, Estefania
  • Centro de Medicina Tropical, División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico.
Becker, Ingeborg
  • Centro de Medicina Tropical, División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico.
Sánchez-Montes, Sokani
  • Centro de Medicina Tropical, División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico.
  • Facultad de Ciencias Biológicas y Agropecuarias, Región Poza Rica-Tuxpan, Universidad Veracruzana, Tuxpan de Rodríguez Cano, Veracruz, Mexico.

MeSH Terms

  • Animals
  • Mexico / epidemiology
  • Mycoplasma Infections / veterinary
  • Mycoplasma Infections / epidemiology
  • Mycoplasma Infections / microbiology
  • Mycoplasma / isolation & purification
  • Mycoplasma / classification
  • Mycoplasma / genetics
  • Horses
  • Horse Diseases / microbiology
  • Horse Diseases / epidemiology
  • Phylogeny
  • RNA, Ribosomal, 16S / genetics
  • RNA, Ribosomal, 16S / analysis
  • DNA, Bacterial / genetics
  • Prevalence
  • Male
  • Female

Grant Funding

  • PAPIIT IG201221 / Instituto de Ecologu00eda, Universidad Nacional Autu00f3noma de Mu00e9xico
  • IG2000924 / Instituto de Ecologu00eda, Universidad Nacional Autu00f3noma de Mu00e9xico
  • 781775 / Consejo Nacional de Ciencia y Tecnologu00eda

Conflict of Interest Statement

Declarations. Conflict of interest: The authors declare that they have no conflicts of interest. Ethical approval: This study was approved by the Ethics and Research Committee of the School of Veterinary Medicine, University of Veracruz, Veracruz, Mexico, following the U.K. Animals (Scientific Procedures) Act, 1986.

References

This article includes 24 references
  1. Abdullah S, Helps C, Tasker S, Newbury H, Wall R. Pathogens in fleas collected from cats and dogs: distribution and prevalence in the UK. Parasit Vectors 12(1):71.
    doi: 10.1186/s13071-019-3326-xpubmed: 30728050pmc: 6366081google scholar: lookup
  2. Arenas P, Gil-Alarcón G, Sánchez-Montes S, Soto-Trujillo MP, Fernández-Figueroa E, Rangel-Escareño C. Molecular detection of Bartonella, Ehrlichia and Mycoplasma in feral dogs of El Pedregal de San Angel Ecological Reserve in Mexico City. Rev Brasil Parasitol Vet=Brazil J Vet Parasitol: Orgao Oficial do Colegio Brasil de Parasitol Vet 28(4):728–734.
    doi: 10.1590/S1984-29612019085google scholar: lookup
  3. Arendt M, Stadler J, Ritzmann M, Ade J, Hoelzle K, Hoelzle LE. Hemotrophic mycoplasmas-vector transmission in livestock. Microorganisms 12(7):1278.
  4. Ballados-González GG, Martínez-Hernández JM, Martínez-Rodríguez PB, Gamboa-Prieto J, González-Guzmán S, Paredes-Cervantes V, Grostieta E, Becker I, Aguilar-Domínguez M, Vieira RFC, Cruz-Romero A, Sánchez-Montes S. Molecular detection of hemotropic Mycoplasma and Bartonella species in lice from sheep and goats of Mexico. Vet Parasitol Reg Stud Rep 44:100921.
  5. Dieckmann SM, Winkler M, Groebel K, Dieckmann MP, Hofmann-Lehmann R, Hoelzle K, Wittenbrink MM, Hoelzle LE. Haemotrophic mycoplasma infection in horses. Vet Microbiol 145(3–4):351–353.
    doi: 10.1016/j.vetmic.2010.04.009pubmed: 20452151google scholar: lookup
  6. Dieckmann SM, Hoelzle K, Dieckmann MP, Straube I, Hofmann-Lehmann R, Hoelzle LE. Occurrence of hemotrophic mycoplasmas in horses with correlation to hematological findings. Vet Microbiol 160(1–2):43–52.
    doi: 10.1016/j.vetmic.2012.05.016pubmed: 22664221google scholar: lookup
  7. Ferrari LDR, Hassan-Kadle AA, Collere FCM, Coradi VS, Ibrahim AM, Osman AM, Shair MA, André MR, Vieira TSWJ, Machado RZ, Vieira RFC. Hemoplasmas and ticks in cattle from Somalia. Acta Trop 236:106696.
  8. Gretillat S. L’he´mobartonellose equine au Niger. Bull Acad Vet Fr 51:351–358.
  9. Groebel K, Hoelzle K, Wittenbrink MM, Ziegler U, Hoelzle LE. Mycoplasma suis invades porcine erythrocytes. Infect Immun 77(2):576–584.
    doi: 10.1128/IAI.00773-08pubmed: 19015255google scholar: lookup
  10. Haddy E, Burden F, Prado-Ortiz O, Zappi H, Raw Z, Proops L. Comparison of working equid welfare across three regions of Mexico. Equine Vet J 53(4):763–770.
    doi: 10.1111/evj.13349pubmed: 32920907google scholar: lookup
  11. Hafner MS, Sudman PD, Villablanca FX, Spradling TA, Demastes JW, Nadler SA. Disparate rates of molecular evolution in cospeciating hosts and parasites. Science (New York, N.Y.) 265(5175):1087–1090.
    doi: 10.1126/science.8066445pubmed: 8066445google scholar: lookup
  12. Happi AN, Oluniyi PE. A rare case of equine Haemotropic Mycoplasma infection in Nigeria. Nigeria Vet J 41:274–286.
    doi: 10.4314/nvj.v41i3.8google scholar: lookup
  13. Kakimori MTA, Barros LD, Collere FCM, Ferrari LDR, de Matos A, Lucas JI, Coradi VS, Mongruel ACB, Aguiar DM, Machado RZ, André MR, Vieira TSWJ, Vieira RFC. First molecular detection of Mycoplasma ovis in horses from Brazil. Acta Trop 237:106697.
  14. Kalantari M, Sharifiyazdi H, Ghane M, Nazifi S. The occurrence of hemotropic Mycoplasma ovis-like species in horses. Prev Vet Med 175:104877.
  15. Maggi RG, Compton SM, Trull CL, Mascarelli PE, Mozayeni BR, Breitschwerdt EB. Infection with hemotropic Mycoplasma species in patients with or without extensive arthropod or animal contact. J Clin Microbiol 51(10):3237–3241.
    doi: 10.1128/JCM.01125-13pubmed: 23863574pmc: 3811635google scholar: lookup
  16. Martínez-Hernández JM, Ballados-González GG, Fernández-Bandala D, Martínez-Soto S, Velázquez-Osorio V, Martínez-Rodríguez PB, Cruz-Romero A, Grostieta E, Lozano-Sardaneta Y, Colunga Salas P, Becker I, Sánchez-Montes S. Molecular detection of Mycoplasma ovis in an outbreak of hemolytic anemia in sheep from Veracruz Mexico. Trop Anim Health Prod 51(1):243–248.
    doi: 10.1007/s11250-018-1648-xpubmed: 29934796google scholar: lookup
  17. Messick JB. Hemotrophic mycoplasmas (hemoplasmas): a review and new insights into pathogenic potential. Vet Clin Pathol 33(1):2–13.
  18. Mongruel ACB, Spanhol VC, Valente JDM, Porto PP, Ogawa L, Otomura FH, Marquez ES, André MR, Vieira TSWJ, Vieira RFDC. Survey of vector-borne and nematode parasites involved in the etiology of anemic syndrome in sheep from Southern Brazil. Rev Brasil Parasitol Vet 29(3):e007320.
    doi: 10.1590/S1984-29612020062google scholar: lookup
  19. Moore CO, Lashnits E, Lappin M, Hawley J, Breitschwerdt EB. A case of mistaken identity: a systematic review, meta-analysis, and reinvestigation of hemotropic Mycoplasma spp. infection in Ctenocephalides felis (cat flea). Parasit Vect 17(1):209.
  20. Suzuki J, Sasaoka F, Fujihara M, Watanabe Y, Tasaki T, Oda S, Kobayashi S, Sato R, Nagai K, Harasawa R. Molecular identification of `Candidatus Mycoplasma haemovis’ in sheep with hemolytic anemia. J Vet Med Sci 73(8):1113–1115.
    doi: 10.1292/jvms.11-0113pubmed: 21519156google scholar: lookup
  21. Sykes JE, Lindsay LL, Maggi RG, Breitschwerdt EB. Human coinfection with Bartonella henselae and two hemotropic mycoplasma variants resembling Mycoplasma ovis. J Clin Microbiol 48(10):3782–3785.
    doi: 10.1128/JCM.01029-10pubmed: 20702675pmc: 2953074google scholar: lookup
  22. Valente JDM, Mongruel ACB, Machado CAL, Chiyo L, Leandro AS, Britto AS, Martins TF, Barros-Filho IR, Biondo AW, Perotta JH, Campos ANS, Vidotto O, Labruna MB, Aguiar DM, Vieira TSWJ, Vieira RFC. Tick-borne pathogens in carthorses from Foz do Iguaçu City, Paraná State, southern Brazil: a tri-border area of Brazil, Paraguay and Argentina. Vet Parasitol 273:71–79.
    doi: 10.1016/j.vetpar.2019.08.008pubmed: 31446256google scholar: lookup
  23. Vieira RF, Vidotto O, Vieira TS, Guimaraes AM, Santos AP, Nascimento NC, Santos NJ, Martins TF, Labruna MB, Marcondes M, Biondo AW, Messick JB. Molecular investigation of hemotropic mycoplasmas in human beings, dogs and horses in a rural settlement in southern Brazil. Rev Inst Med Trop Sao Paulo 57(4):353–357.
  24. Wang X, Cui Y, Zhang Y, Shi K, Yan Y, Jian F, Zhang L, Wang R, Ning C. Molecular characterization of hemotropic mycoplasmas (Mycoplasma ovis and ‘Candidatus Mycoplasma haemovis’) in sheep and goats in China. BMC Vet Res 13(1):142.
    doi: 10.1186/s12917-017-1062-zpubmed: 28549435pmc: 5446696google scholar: lookup

Citations

This article has been cited 0 times.