Select Agents and Toxins Exclusions

Attenuated strains of USDA-only select agents excluded from the requirements of 9 CFR Part 121

  • Avian influenza virus (low pathogenic)
    Any low pathogenic strains of avian influenza virus, avian paramyxovirus serotype-1 (APMV-1) viruses which do not meet the criteria for Newcastle disease virus, including those identified as pigeon paramyxovirus-12 isolated from a non-poultry species, all subspecies Mycoplasma capricolum except subspecies capripneumoniae (contagious caprine pleuropneumonia), and all subspecies Mycoplasma mycoides except subspecies mycoides small colony (Mmm SC) (contagious bovine pleuropneumonia), provided that the individual or entity can identify that the agent is within the exclusion category.

  • Avian influenza virus (highly pathogenic), recombinant vaccine reference strains of the H5N1 and H5N3 subtypes (effective 5-7-2004)
    Several recombinant reference vaccine strains of highly pathogenic subtypes have been excluded based on results from in-vitro and in-vivo studies indicating that these strains were not pathogenic in avian species. The data requirements necessary for exclusion consideration under 9 CFR 121.3(g)PDF version 103KB. Specific reference vaccine strains have not been listed here for proprietary reasons.

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