Veterinary Diagnostic Laboratory


The Veterinary Diagnostic Laboratory provides diagnostic medical testing for infectious agents, toxins, and other causes of disease in animal diagnostic samples submitted by veterinary practitioners serving animal owners, public officials associated with public health, law or wildlife management, and scientists with collaborative research projects.

The laboratory also provides collaborative research support on the Urbana and Chicago campuses of the University of Illinois and has a significant role in the training of veterinary and graduate students. It is home to the Zoological Pathology Program, located in the Chicago area, which provides service, training, and research for zoo and wildlife organizations and agencies.

The Veterinary Diagnostic Laboratory faculty and staff are composed of discipline specialists, including: pathologists, clinical pathologists, histotechnologists, microbiologists, virologists, immunologists, parasitologists, and serologists. Many also have one or more particular species and/or organ specialties to offer a well rounded approach to diagnostic medicine with considerable depth. Frequent in-laboratory consulting on cases occurs in providing the best possible diagnostic service.

members of the veterinary diagnostic lab faculty using a double microscope

The laboratory is fully accredited by the American Association of Veterinary Laboratory Diagnosticians. Each and every employee contributes to this status by following established guidelines and performing their duties to the highest standard daily. The laboratory is also a member of the The National Animal Health Laboratory Network.

Faculty and Staff


Hours and Holiday Schedule

Client Services open Monday through Friday, 8 am to 5 pm.

Receiving open Monday through Friday, 8 am to 5 pm, and Saturday 9 am to 12 noon.
Our submission dropoff box accepts samples 24-hours a day.

We are closed on the following holidays:

  • New Year’s Day
  • Martin Luther King Jr. Day
  • Memorial Day
  • Independence Day
  • Labor Day
  • Thanksgiving
  • Friday after Thanksgiving
  • Christmas Eve
  • Christmas Day

Emergency on-call pathology service is available except on New Year’s Day, Thanksgiving Day, and Christmas Day.

News Diagnostic Updates


Mar 27, 2015 / Diagnostic Updates

Tularemia is a naturally occurring illness caused by a bacterium called Francisella tularensis. These bacteria can be found in certain animals (especially rodents, rabbits and hares).  Tularemia can cause six different forms of disease; however, approximately up to 80 percent of the cases are “ulceroglandular” (skin ulcers and swollen lymph glands) and are the result...

Faculty: Dr. Patrick Roady

Dec 11, 2014 / Diagnostic Updates

Patrick Roady completed his DVM in 2003 from the University of Illinois, College of Veterinary Medicine. He worked in private practice for 6 years, predominately practicing food animal medicine. In 2009, Patrick returned to the University of Illinois for a residency in anatomic pathology. Patrick completed his residency training in September of 2012, passed the...


Dec 11, 2014 / Diagnostic Updates

The VDL is now offering a real time reverse transcription assay (rRT-PCR) for the detection of the membrane (M) gene of porcine delta coronavirus (PDCoV). The virus has been detected since February 2014 in Ohio, Iowa, Minnesota and Illinois; however, the true prevalence of PDCoV in the U.S. is unknown. Complete genome sequencing performed on...

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