The Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) is pleased to offer two new ELISA tests to detect antibodies against Neospora caninum and Toxoplasma gondii in multiple species. Both tests offer improvements over the existing indirect fluorescent antibody (IFA) tests as they are interpreted automatically using an instrument, removing the need for subjective interpretation of results, and reducing the overall cost for clients compared to the IFA offerings.
The Neospora caninum competitive ELISA is validated to detect antibodies against Neospora caninum in the serum and plasma of dogs and small ruminants. As a competitive ELISA, this test is not species-specific and may be used in other species upon request; however, a comment will be included in the report indicating that internal validation has not been performed on other species.
Test: Neospora caninum – Canine (ELISA)
Test Code: 1587
The Toxoplasma IgG indirect ELISA is validated to detect antibodies against the Toxoplasma gondii P30 antigen in serum from dogs, cats, ruminants, and swine. This test can detect IgG antibodies from a variety of mammalian species and may be used in species other than those listed upon request; however, a comment will be included in the report indicating that internal validation has not been performed for other species.
Test: Toxoplasma gondii IgG (ELISA)
Test Code: 1597
Beginning September 5, the Neospora caninum – Canine cELISA test will be the default test for dogs on submissions that only request a Neospora caninum test and do not specify a test method. Additionally, the Toxoplasma gondii IgG ELISA test will be the default test for dog and cat submissions that only request a Toxoplasma test and do not specify a test method or the toxoplasmosis IFA panel.
Further, since TVMDL holds serum samples for 2 weeks from the date the sample is received, clients may request additional testing by IFA when either the Neospora or Toxoplasma ELISAs yield a positive result.
For Neospora caninum testing in cattle, please continue to request the Neospora caninum – Bovine ELISA test (code #1473). Additionally, at present, the Toxoplasma gondii IgG IFA remains part of the Abortion Panel – Caprine/Ovine Serology panel.
For more information on TVMDL’s serology test offerings, visit tvmdl.tamu.edu or call 1.888.646.5623.