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Ricardo G. Maggi, MS, PhD

Ricardo Maggi photo

Research Associate Professor
Phone: 919.513.8273
Fax: 919.513.6336



Molecular Microbiology

Professional Experience & Qualifications

Research Area

Molecular microbiology of vector borne diseases and intracellular pathogens in animals and humans.
Development of molecular assays for the detection, diagnosis, and characterization of emerging and re-emerging zoonotic pathogens.

Selected Publications

Hegarty BC, Maggi RG, Koskinen P, Beall MJ, Eberts M, Chandrashekar R, Breitschwerdt EB. 2012.  Ehrlichia muris Infection in a Dog from Minnesota. J Vet Intern Med. 26: 1217-1220.

Compton S, Maggi RG, Breitschwerdt EB. 2012. Candidatus Mycoplasma haematoparvum and Mycoplasma haemocanis infections in dogs from the United States. Com. Immunol Microb & Infectious Diseases. 35:557-562.

Maggi RG, Mozayeni BR, Pultorak EL, Hegarty BC, Bradley JM, Correa, Breitschwerdt EB. 2012. Bartonella henselae, Bartonella koehlerae and Bartonella vinsonii subsp. berkhoffii bacteremia in rheumatic patients from a Lyme disease endemic region. EID, 18: 783-791.

Maggi RG, Mozayeni R, Pultorak EL, Hegarty BC, Bradley JM, Correa M, Breitschwerdt EB.  2011. Bartonella spp bacteremia in high-risk patients. Diagn Microbiol Infect Dis. 71: 430-437.

Pérez C, Maggi RG, Diniz PP, Breitschwerdt EB. 2011. Molecular and serological diagnosis of Bartonella infection in 61 dogs from the United States. J Vet Intern Med. 25:805-810.

Maggi RG, Reichelt S, Toliver M, Engber B.  2010. Borrelia species in Ixodes affinis and Ixodes scapularis ticks collected from the Costal Plain of North Carolina.  Ticks and Tick Borne Diseases.1: 168-171.

Chomel BB, Kasten RW, Williams C, Wey AC, Henn JB, Maggi R, Carrasco S, Mazet J, Boulouis HJ, Maillard R, Breitschwerdt EB.  2009. Bartonella Endocarditis: A Pathology Shared by Animal Reservoirs and Patients. Ann. N.Y. Acad. Sci. 1166: 120–126.

Maggi RG, Kosoy M, Mintzer M, Breitschwerdt EB. 2009. Isolation of Candidatus Bartonella melophagi from Human Blood.  Emerging Inf. Dis. 15:66-68.

Maggi RG, Raverty SA, Lester SJ, Huff DG, Haulena M, Ford SL, Nielsen O, Robinson JH, Breitschwerdt EB.  2008.  Bartonella henselae in captive and hunter harvested beluga (Delphinapterus leucas).  J wild dis. 44: 871-877.

Harms CA, Maggi RG, Breitschwerdt EB, Clemons-Chevis CL, Solangi M, Rotstein DS, Fair PA, Hansen LJ, Hohn AA, Lovewell GG, McLellan WA, Pabst DA, Rowles TK, Schwacke LH, Townsend FI, Wells RS.  2008. Bartonella species detection in captive and stranded versus healthy free-ranging dolphins and porpoises in the southeastern United States.  Vet. Res: 39: 59-64.

Maggi RG, Bosen A, Brown J, Chomel B, Hegarty BC, Breitschwerdt EB. 2006. A Bartonella vinsonii berkhoffii typing scheme based upon 16S-23S ITS and Pap31 sequences from dog, coyote, gray fox, and human isolates.  Mol. Cell. Probe; 20: 128-134.

Maggi RG, Harms CA, Hohn AA, Pabst DA, McLellan WA, Walton WJ, Rotstein DS, Breitschwerdt EB. 2005. Bartonella henselae in porpoise blood.  Emerging Inf. Dis. 11:1894-1898.

Maggi RG, Breitschwerdt EB. 2005 Isolation of bacteriophages from Bartonella vinsonii subsp. berkhoffii and the characterization of Pap31 gene sequences from bacterial and phage DNA. J. Mol. Microbiol. Biotechnol. 9:44-51.

Maggi RG, Breitschwerdt EB. 2005.  Potential limitations of the 16S-23S rRNA intergenic region for molecular detection of Bartonella species. J. Clin. Microbiol. 43:1171-1176.

Maggi RG, Duncan AB, Breitschwerdt EB. 2005. Novel chemically defined liquid medium for the growth, as single or composed culture, and the primary isolation of Bartonella species from blood and body fluids. J. Clin.Microbiol. 43:2651-2655.