Diagnostic and Clinical Microbiology Service

The Clinical Microbiology Service at the OSU-VMC provides testing in the areas of bacteriology, mycology, serology and molecular diagnostics. With our assistance, clinicians provide diagnoses and treatments to the 57,000 patients examined in the OSU-VMC every year. We also offer our services to primary veterinary practices, animal resource facilities, and researchers within or outside the university. 

Sample Submission Guidelines & Recommendations

Our Services


  • Aerobic culture
  • Anaerobic culture
  • Clostridium perfringens and Clostridioides difficile culture
  • Blood culture
  • Mycoplasma culture
  • Mycobacterium culture
  • Salmonella culture
  • Bacterial identification by MALDI-TOF
  • Routine antimicrobial susceptibility testing
  • Extended antimicrobial susceptibility testing for multidrug resistant bacteria


  • Routine fungal culture
  • Dermatophytes culture


SNAP® Tests​

    - 4DX

     - Feline Combo (FeLV/FIV)

     - Parvo

Witness®  Lepto


  • ​​​Brucella canis


  • PCR
    • Salmonella spp.


Other Services

  • Consultation

Our team is trained in providing guidance on test selection and diagnostic results interpretation for infectious diseases and infection control.

  • Infection Control

The Clinical Microbiology Laboratory supports the Infection Control Initiatives of the VMC to protect patients, personnel, and public health from infectious pathogens.

  • Antimicrobial Stewardship

Antimirobial resistance is a major threat to veterinary medicine and public health. We are part of the OSU-CVM Antimicrobial Stewardship Program Working Group. Our main role is to aid clinicians and students to interpret laboratory results and select appropriate antimicrobial therapy, supporting educational initiatives, and research efforts.

  • Research

Our laboratory supports OSU and external researchers on experimental design and pathogen identification. Contact the laboratory for pricing and additional information.


Sample Submission

Sample Submission Guidelines & Recommendations


  • Sample drop-off
    • During business hours: Microbiology Laboratory (VMC 0047)
    • After hours or on holidays: Refrigerator in Microscopy Room (VMC 1049). 

            Exceptions: blood culture bottles and hair samples must be kept at room temperature

External Submitters

  • Submissions must be placed through our online portal CoreOne for Labs
  • Contact the laboratory for account setup and instructions or click here

Visit the Sample Submission Guidelines & Recommendations above for specific recommendations for sample collection and transport media. 

If you need detailed information about the tests we offer, please visit the new Laboratory Testing Catalog

Laboratory Hours

  • Monday - Friday: 8am to 5pm
  • Saturday: 8am to 12pm

*Hours may vary during holiday schedules


Contact Information

Email: CVM-VMC-Microlab@osu.edu

OSU Veterinary Medical Center - Microbiology Room 0047

601 Vernon L Tharp Street

Columbus, OH 43210 

Phone: (614) 292-7956

Fax: (614) 292-4688


Our Team

  • Dubraska Diaz-Campos, DVM, PhD, Assistant Professor, Director
  • Joany van Balen, DVM, PhD, Laboratory Supervisor
  • Matthew Stempien, BS, Laboratory Technician
  • Sarah Moore, BA, Laboratory Technician
  • Christy King, DVM, MPH, Microbiology-Infection Control/PhD Graduate Student



Please read our payment policy for complete information.