The following words and terms, when used in this chapter, shall
have the defined meanings, unless the context clearly indicates otherwise:
(1) Bovine Viral Diarrhea (BVD) - Bovine viral diarrhea
is a viral disease of cattle that is caused by the bovine viral diarrhea
virus (BVDV).
(2) BVDV Persistently Infected (BVDV-PI) Cattle--Any
cattle with positive results on a BVDV antigen detection test (e.g.,
ELISA [enzyme-linked immunosorbent assay], PCR [polymerase chain reaction],
or BVDV immunohistochemistry [IHC]) that either are not retested,
or that have a positive result on a BVDV retest.
(3) BVDV Retest--A subsequent test for BVDV using an
antigen detection test (e.g., ELISA [enzyme-linked immunosorbent assay],
PCR [polymerase chain reaction], or BVDV immunohistochemistry [IHC]).
(4) Cattle--All dairy and beef animals (genus Bos).
(5) Commission--The Texas Animal Health Commission.
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