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.      
     Source Note:        The provisions of this §44.1 adopted to be effective February 2, 2020, 45 TexReg 529