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Guidance Issuing OfficeCenter for Biologics Evaluation and Research
This guidance document provides the current recommendations of the Food and Drug Administration (FDA) for assessment of donor suitability and quarantine and retrieval of blood and blood products in cases of donors exposed to vaccinia virus, which is the virus used in smallpox vaccines. The presence of vaccinia virus in transfused blood or plasma could be harmful to some recipients. Although the presence of vaccinia virus in blood (viremia) has rarely been documented, this possibility has not been assessed using modern laboratory techniques. Therefore, the risk of transmission of vaccinia virus by blood and blood products is uncertain.
You can submit online or written comments on any guidance at any time (see 21 CFR 10.115(g)(5))
If unable to submit comments online, please mail written comments to:
Food and Drug Administration
5630 Fishers Lane, Rm 1061
Rockville, MD 20852
All written comments should be identified with this document's docket number: 02D-0362.