Lab closed on Monday, September 5th
The Ohio ADDL will be closed on Monday, September 5th, 2016 in observance of Labor Day.
For additional information and resources, please visit our website. If you need to contact us regarding an urgent matter, please use our after hours phone number: (888) 456-3405.
Thank you and have a great holiday weekend!
Ohio Animal Disease Diagnostic Laboratory
ADDL Assists Indiana and USDA in Confirming Bovine TB in Beef Herd
-Jeff Hayes, DVM, MS, ADDL Pathology Section Head
The ADDL Pathology Section provided surge capacity necropsy
service for Indiana and the USDA in the investigation of bovine tuberculosis in
a beef herd in southeastern Indiana this past spring. ADDL staff performed
necropsy examinations of 11 cattle and submitted samples to NVSL for this
investigation. Culture and PCR analysis at NVSL confirmed the presence of
Mycobacterium bovis in ten of the 11 cattle examined at ADDL. Gross
lesions consistent with bovine tuberculosis were observed in all ten of the
culture/PCR-positive animals.
In mid-August, Indiana subsequently announced
the diagnosis of bovine tuberculosis in a wild white-tailed deer in the same
county as the beef herd. This has prompted the Ohio's State Veterinarian, Dr.
Tony Forshey, to issue warnings for cattle owners and hunters in Ohio. In
particular, cattle owners in southwestern Ohio should closely monitor their
herds for symptoms of this bacterial disease, such as lethargy and coughing.
Cattle owners should take steps to prevent cattle from having contact with wild
animals. Hunters are advised to protect themselves by wearing gloves when field
dressing animals and by fully cooking any meat.
 Changes
to OIE recommendations for IBR and BVD semen testing
Chris McKee, PhD, ADDL Virology Section
Revised guidelines for semen submission
To ensure consistency with the OIE recommendations, the Virology Section at ADDL is updating procedures for
virus isolation and PCR testing of bovine semen. The updated procedures have
increased minimum sample volume requirements for extended semen, as described
below:
- IBR virus isolation: 0.5 mL total extended semen.
- BVD virus isolation: 1.0 mL total extended semen.
- BVD PCR: Three 0.25 mL straws of extended semen.
As always, clients are encouraged to contact the
laboratory with any questions they may have regarding sample requirements.
WNV and EEE Vaccination
Jeff Hayes, DVM, MS, ADDL Pathology Section Head
Last Call: Equine clients reminded to vaccinate their horses against west Nile virus (WNV) and eastern equine encephalomyelitis (EEE)
Reports of West Nile virus (WNV) and eastern equine encephalomyelitis (EEE) infections in horses continue to increase from around the country. As summer draws to a close, there is still time to remind your clients that their horses can effectively be vaccinated against these viruses that are transmitted primarily by mosquitoes. Ohio cases of WNV and EEE in horses the past few years have occurred from late August until mid-October.
The ADDL offers PCR tests for WNV and EEE viruses and can coordinate serology testing with NVSL for blood samples. Please call the ADDL for more information at 614-728-6220, or visit our website test and fees search (pages 12 and 28) at http://www.ohioagriculture.gov/divs/ai/addl/addltests.aspx .
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