• Office
  • PAHL 3821
  • 54497

Grazieli Maboni

Assistant Professor   |   DVM, MSc, PhD, Diplomate ACVM


I am a board-certified veterinary microbiologist with primary interest on the application of diagnostic tools to solve animal and human health problems. I also have a special interest for veterinary education and I am enthusiastic about contributing with the training of the next generation of animal health professionals.

Research Interests

  • Surveillance of antimicrobial resistance of bacterial and fungal pathogens
  • Pathogen discovery in the context of clinical bacteriology, virology and mycology
  • Novel genomic tools to advance diagnostics of animal infectious diseases
  • Development of sequencing approaches that can be incorporated into clinical diagnostic workflows


  • VETM*3450 Principles of Disease in Veterinary Medicine (Virology)
  • OVC Phase 4 rotations – Clinical Microbiology

Professional Experience & Honours

  • Diplomate American College of Veterinary Microbiologists (2020) - Virology
  • Diplomate American College of Veterinary Microbiologists (2019) - Bacteriology/Mycology
  • Residency in Clinical Microbiology (2020) - University of Georgia (United States)
  • PhD (2017) - University of Nottingham (United Kingdom)
  • Teaching certification (2015) - Associate fellow, Higher Education Academy (United Kingdom)
  • MSc (2013) - Federal University of Santa Maria (Brazil)
  • DVM (2012) - Federal University of Santa Maria (Brazil)


Selected Publications


  • Maboni G; Blanchard A; Frosth S; Stewart C; Aspan C; Emes R; Tötemeyer S. A distinct bacterial dysbiosis associated skin inflammation in ovine footrot. Scientific Reports, 2017.
  • Maboni G; Davenport R; Sessford K; Jensen T., Blanchard A; Tötemeyer S. A novel 3D skin explant model to study anaerobic bacterial infection. Frontiers in Cellular and Infection Microbiology, 2017.
  • Maboni G; Seguel M; Lorton A; Sanchez S. Antimicrobial resistance patterns of Acinetobacter spp. of animal origin reveal high rate of multidrug resistance. Veterinary Microbiology, 2020.
  • Maboni G; Seguel M; Lorton A; Berghaus R; Sanchez S. Canine infectious respiratory disease: new insights into the aetiology and epidemiology of associated pathogens. Plos ONE, 2019.
  • Maboni G; Gressler LT; Espindola JP; Schwab M; Tasca C; Potter L; Vargas AC. Differences in the antimicrobial susceptibility profiles of Moraxella bovis, M. bovoculi and M. ovis. Brazilian Journal of Microbiology, 2015.
  • Maboni G; Frosth S; Aspan A; Totemeyer S. Ovine footrot: new insights into bacterial colonisation. Veterinary Record, 2016.
  • Kowalski A; Maboni G; Trevisan L; Espíndola JP; Balzan C; Tasca C; Guizzo JA; Frandoloso R; Vargas AC. Antigenic characterization of Moraxella bovis, Moraxella bovoculi and Moraxella ovis strains with potential use in vaccines. Veterinary Microbiology, 2017.
  • Lucca E; Alvarez S; Maboni G; Baptista RP; Nemeth N; Niedringhaus K; Ladner J; et al. Comparative genomics analyses support the reclassification of Bisgaard taxon 40 as Mergibacter gen. nov., with Mergibacter septicus sp. nov. as type species: novel insights into the phylogeny and virulence factors of a Pasteurellaceae family member associated with mortality events in seabirds. Frontiers in Microbiology, 2021.
  • Kowalski A; Maboni G; Trevisan L; Espíndola JP; Balzan C; Tasca C; Guizzo JA; Frandoloso R; Vargas AC. Antigenic characterization of Moraxella bovis, Moraxella bovoculi and Moraxella ovis strains with potential use in vaccines. Veterinary Microbiology, 2017.
  • Farias L; Maboni G; Matter L; Scherer CC; Libardoni F; Vargas AC. Phylogenetic analysis and genetic diversity of 3` region of rtxA gene from geographically diverse strains of Moraxella bovis, Moraxella bovoculi and Moraxella ovis. Veterinary Microbiology, 2015.
  • Warren J; Owen R; Glanvill A; Francis A; Maboni G; Nova RJ; Wapenaar W; Rees C; Totemeyer S. A new bovine conjunctiva model shows that Listeria monocytogenes invasion is associated with lysozyme resistance. Veterinary Microbiology, 2015.
  • Blanchard A; Billenness R; Warren J; Glanvill A; Maboni G; Robinson R; Rees CE; Pfarrer C; Tötemeyer S. Characterisation of Listeria monocytogenes isolates from cattle using a bovine caruncular epithelial cell model. Heliyon, 2020.
  • Seguel S; George N; Maboni G; Sanchez S; Page-Karjian A; Gottdenker NL. Pathologic findings and causes of death in bottlenose dolphins (Tursiops truncatus) stranded along the Georgia Coast, USA (2009–2013). Diseases of Aquatic Microorganisms, 2020.
  • Blanchard A; Jolley K; Maiden M; Coffey T; Maboni G; Staley C; Bollard N; Warry A; Emes R; Davies P; Tötemeyer S. The Applied development of a tiered multilocus sequence typing (MLST) scheme for Dichelobacter nodosus. Frontiers in Microbiology, 2018.
  • Batista D; Freitas O; Almeida A; Maboni G; de Carvalho TF; Junior AB. Evaluation of pathogenicity of Salmonella Gallinarum strains harbouring deletions in genes whose orthologues are conserved pseudogenes in S. Pullorum. PloS ONE, 2018.
  • Santurio DF; Matiuzzi M; Maboni G; Cavalheiro C; Pozzo MD; Alves SH. Antimicrobial activity of spice essential oils against Escherichia coli strains isolated from poultry and cattle.  Ciencia Rural, 2011.
  • Agbaje M; Rutland C; Maboni G; Blanchard A; Bexon M; Stewart C; Totemeyer S. Novel inflammatory cell infiltration scoring system to investigate healthy and footrot affected ovine interdigital skin. PeerJ, 2018.
  • Niedringhaus KD, Shender LA, DiNuovo A, Flewelling LJ, Maboni G, Sanchez S, Deitschel PJ, Fitzgerald J, Nemeth NM. Mortality in common (Sterna hirundo) and sandwich (Thalasseus sandvicensis) terns associated with Bisgaard Taxon 40 infection on Marco Island, Florida, USA. Journal of Comparative Pathology, 2021.


  • Maboni G; Elbert J; Stilwell J; Sanchez S. Genomic and pathology findings of Prototheca cutis infection in a cat. Emerging Infectious Diseases, 2021.
  • Cavalheiro A; Maboni G; Azevedo M; Argenta J; Pereira D; Spader TB; Alves S; Santurio J. In vitro activity of terbinafine combined with caspofungin and azoles against Pythium insidiosum. Antimicrobial Agents and Chemotherapy, 2009.
  • Maboni G; Krimer P; Baptista R; Lorton A; Sanchez S. Laboratory diagnostics, phylogenetic analysis and clinical outcome of a subcutaneous Mycoleptodiscus indicus infection in an immunocompetent cat. BMC Veterinary Research, 2019.
  • Argenta J; Alves S; Silveira F; Maboni G; Zanette R; Cavalheiro A; Pereira PL; Pereira D; Sallis E; Santurio J; Ferreira L. In vitro and in vivo susceptibility of two-drug and three-drug combinations of Terbinafine, Itraconazole, Caspofungin, Ibuprofen and Fluvastatin against Pythium insidiosum. Veterinary Microbiology, 2012.
  • Bach B; Leal D; Ruchel J; Souza V; Maboni G; Pozzo MD; Schlemmer KB; Alves S; Santurio J. Immunotherapy for pythiosis: Effect on NTPDase activity in lymphocytes of an experimental model. Biomedicine & Pharmacotherapy, 2010.
  • Argenta J; Alves S; Silveira F; Maboni G; Pereira D; Spanamberg A. In vitro paradoxical growth of Pythium insidiosum in the presence of caspofungin. Veterinary Microbiology, 2010.


  • Maboni G; Kelly JE; Clancy C; De Luca E; et al. Detection of asinine gammaherpesvirus in association with pulmonary disease in free ranging donkeys. Journal of Veterinary Diagnostic Investigation, 2021. 
  • Dalton M; Siepker C; Maboni G; Sanchez S; Rissi D. Ocular and lacrimal gland lesions in naturally occurring rabies of domestic and wild mammals. Veterinary Pathology, 2020.
  • Kokosinska A; Maboni G; Kelly K; Molesan A; Sanchez S; Saliki J; Rissi D. Necrotizing meningoencephalitis associated with parvoviral infection in cats. Veterinary Pathology, 2019.
  • Stimmelmayr R; Rotstein D; Maboni G; Person TB; Sanchez S. Morbillivirus associated lipid pneumonia in arctic foxes (Vulpes lagopus). Journal of Veterinary Diagnostic and Investigation, 2018.