Animal and Plant Health Inspection Service March 16, 2005 – Federal Register Recent Federal Regulation Documents
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Viruses, Serums, Toxins, and Analogous Products; Standard Requirements for Bovine Virus Diarrhea and Bovine Rhinotracheitis Vaccines
We are withdrawing a proposed rule to amend the Virus-Serum- Toxin Act regulations concerning Standard Requirements for Bovine Virus Diarrhea Vaccine, Killed Virus, and Bovine Rhinotracheitis Vaccine, Killed Virus. The proposed rule would have required vaccines to elicit specific antibody titer that is at least 80 percent of the geometric mean antibody titer obtained in the vaccinates in the host animal protection study to pass the potency test. We are taking this action after considering the comments we received following the publication of the proposed rule.
Viruses, Serums, Toxins, and Analogous Products; Standard Requirement for Escherichia Coli Bacterins
We are withdrawing a proposed rule to amend the Virus-Serum- Toxin Act regulations by adding a Standard Requirement for Escherichia coli bacterins. The proposed rule would have provided uniform test methods, procedures, and criteria to be used by manufacturers of E. coli bacterins to ensure that such bacterins were immunogenic and potent. We are withdrawing the proposed rule after considering the comments we received following its publication.
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