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The following are answers to some of the most frequently asked questions at ADDL.

Do not bring your deceased animal(s) into ADDL through the front door! Check in with our Front Desk personnel and they will help you with receipt of your animal, and get you in contact with one of our veterinary pathologists.

If you are shipping samples to us, submit the appropriate specimen for the desired test(s). Refer to our Diagnostic Plans and/or Tests and Fees List for information concerning specimen collection and shipment.

The Ohio ADDL offers more than 400 diagnostics tests for a variety of animal species. Visit our Tests and Fees page to search for specific tests. You will also find additional information including cost of the test, which lab section performs the test, acceptable specimens, what temperature to use during shipment of the specimens, days the test is performed, and turnaround time.

We also offer Diagnostic Plans for abortion, enteric, and respiratory cases.

Submit the body of the animal, or the head of the animal, to the ADDL. Contact the ADDL Pathology Section at 614-728-6220 during business hours. ADDL Pathologists work with practitioners to review the clinical history and clinical signs, and to develop a differential diagnosis with testing options after a negative rabies test result is obtained from the Ohio Department of Health Laboratories (ODHL).

Rabies testing is included with necropsy service at the price determined by species-related fees assessed by ODHL. There are additional ADDL fees for head removal or for brain removal under some conditions; consult with ADDL staff to determine if these may pertain to a given case.

ADDL's address:

8995 East Main Street

Building 6

Reynoldsburg, OH 43068

For questions or an emergency testing situation, call the ODHL during business hours at (614) 644-4654.

Specimen Handling and Packaging


Animal heads or brain tissue should be kept refrigerated, but not frozen at any time. The specimen should be double bagged using heavy plastic and each bag should be properly sealed. Do not use metal twist ties. If the specimen has any sharp protruding parts such as shattered bone, wrap it in several layers of newspaper first.
Place double-bagged specimens in an insulated container and surround the specimen(s) with frozen packs. If more than one animal of the same species is submitted in a container, double check that each specimen is labeled properly. A fully completed ADDL Submission Form, signed by a licensed veterinarian must be included for each specimen submitted. Place a copy of the completed ADDL submission form in an envelope or a clear plastic bag (e.g. ziplock bag) and either affix it to the outside of the container, or place it on the top of the lid of an inner container within an outer secondary container. Do not place forms within the inner shipping container so that they touch bagged specimens.


The standard test for detecting rabies is a fluorescent antibody test on brain tissue. If the test is positive, it is assumed the saliva also contained virus and the animal was infectious for rabies. If the test is negative, rabies virus is considered not to have been in the saliva. Rabies specimens are processed Monday through Friday afternoons by the Ohio Department of Health Laboratory (ODHL), and results are read the following workday morning. Results are then phoned to the submitter. 

Information obtained from ODH's Rabies Information website.



You are welcome to contact the lab when you have questions about your results, or need help interpreting the information. Give the lab a call at 614-728-6220; please have your accession number, account number, owner's name, date specimens were shipped, and test(s) requested available. To protect our client's confidentiality, we only share test results with the client on record (ie, the clinic or person paying the bill).


We have a General Submission Form that needs to be included with your shipment. For detailed instructions on how to ship your specimen, refer to our Submission Guidelines.

Alternatively, a Poultry Submission Form may be used for poultry submissions, or the Highly Pathogenic Avian Influenza Form is requested if you suspect HPAI in your flock.


Refer to our Submission Guidelines for detailed instructions to ship your biological materials to us.