Ohio ADDL August 2019 Newsletter


Ohio Department of Agriculture   -   AUGUST 2019

In this issue

- ISO 17025 Accreditation

- Dr. Hayes at PIADC

- Summer Interns

- Successful Backyard Poultry Symposium

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Animal Disease Diagnostic Laboratory

8995 East Main Street

Reynoldsburg, OH 43068

Phone: (614) 728-6220

Fax: (614 ) 728-6310



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ADDL Receives ISO/IEC 17025 Accreditation

Dr. Yan Zhang, DVM, PhD, DACVM, Section Head of Virology and Molecular Diagnostics 

The ADDL’s Next Generation Sequencing (NGS) Laboratory reached another milestone as the laboratory received the ISO/IEC 17025 accreditation. The laboratory was fully accredited by the American Association of Laboratory Accreditation (A2LA). ISO/IEC 17025 accreditation is the single most important standard for calibration and testing laboratories around the world. To receive the ISO 17025 accreditation, the laboratory has demonstrated to be technically proficient and able to produce precise and accurate test results. In addition to the NGS laboratory, ADDL’s Bacteriology Laboratory and Virology Laboratory are also accredited by A2LA for FDA OEQAP Salmonella Enteritidis culture for environmental samples and for pseudorabies ELISA assays.


Dr. Hayes Invited Speaker at Foreign Animal Disease Course

Dr. Jeff Hayes, Pathology Section Head, was an invited speaker at the June 2019 Foreign Animal Disease course for state, federal and military veterinarians at the USDA Plum Island Animal Disease Center. Government veterinary medical officers are trained in the recognition and diagnosis of eleven diseases of animals that do not occur in the United States. The list of diseases includes foot and mouth disease, classical and African swine fever in pigs, peste des petits ruminants, sheep pox, heartwater, highly pathogenic avian influenza, virulent Newcastle disease, African horse sickness, rabbit hemorrhagic disease and contagious bovine pleuropneumonia. Dr. Hayes was invited to make presentations to the class regarding African swine fever, heartwater and malignant catarrhal fever. Dr. Hayes has participated as an instructor for over 40 such courses over the last 15 years.

Summer Interns at the ADDL


L to R: Andrew Vaughn, Isabel Tobin, Tate Coriell, Dr. Tony Forshey


Melanie Prarat, MS, ADDL Virology Section 

The ADDL is fortunate to host interns year round, but the summer months are when we are busiest teaching undergraduate and graduate students about veterinary diagnostics. This summer, interns worked in the Bacteriology, Pathology and Virology lab sections. Interns observed day-to-day operations at ADDL, including sample receipt, testing, and result reporting. They also experienced several necropsies, molecular diagnostic testing, and learned about new technologies that are revolutionizing veterinary diagnostics, like MALDI-TOF and whole genome sequencing.


A few of the interns posed for the above picture with our State Veterinarian, Dr. Tony Forshey. The ADDL had two ODAU interns with us this summer, Isabel Tobin and Tate Coriell. Isabel is a junior at University of Findlay and spent her time in the ADDL Bacteriology section working on detection/identification of Salmonella Enteritidis from environmental samples of poultry layers for the FDA OEQAP program. Tate, a senior at Morehead State University, focused on assay development, specifically several equine real-time PCRs for the Molecular Diagnostics section. Andrew Vaughn, a first year Master of Public Health candidate at The Ohio State University School of Public Health, spent a month in the ADDL Pathology Section observing animal necropsy examinations and assisting in tabulating diseases diagnosed at the ADDL for reporting in the National Animal Health Reporting System (NAHRS) for the USDA.

Advanced Backyard Poultry Symposium a Success

Dr. Jeff Hayes, MS, DVM, ADDL Section Head of Pathology 

An Advanced Poultry Medicine Workshop held at the Ohio Department of Agriculture on June 20 was very successful, with approximately 50 veterinarians attending the day long session. The program was led by Dr. Geoffrey Lossie, OSU Poultry Extension Veterinarian, with lectures provided by various poultry experts from Ohio State University, Purdue University and the Ohio ADDL. Dr. Craig Sarver made a presentation regarding Animal Disease Diagnostic Laboratory Services. Contact the ADDL at 614-728-6220 to learn more about ADDL poultry diagnostic services.


Veterinarians learned about various poultry diseases at the day-long symposium. Here, the veterinarians are on the necropsy floor during a presentation.


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