Definitions.

CFR · 2024-01-01 · US · Title 9

Whenever in the regulations in this part the following words, names, or terms are used they shall be construed, respectively, to mean: (1) Any influenza virus that kills at least 75 percent of eight 4- to 6-week-old susceptible chickens within 10 days following intravenous inoculation with 0.2 mL of a 1:10 dilution of a bacteria-free, infectious allantoic fluid or inoculation of 10 susceptible 4- to 8-week-old chickens resulting in an intravenous pathogenicity index (IVPI) of greater than 1.2; (2) Any H5 or H7 virus that does not meet the criteria in paragraph (1) of this definition, but has an amino acid sequence at the haemagglutinin cleavage site that is compatible with highly pathogenic avian influenza viruses; or (3) Any influenza virus that is not an H5 or H7 subtype and that kills one to five out of eight inoculated chickens and grows in cell culture in the absence of trypsin within 10 days. (1) A national entity (country); (2) Part of a national entity (zone, county, department, municipality, parish, Province, State, etc.) (3) Parts of several national entities combined into an area; or (4) A group of national entities (countries) combined into a single area.

official document · source cfr-2024 · id 9:§ 95.1