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Electronic Code of Federal Regulations

e-CFR data is current as of November 18, 2019

Title 21Chapter ISubchapter HPart 866Subpart D → §866.3900


Title 21: Food and Drugs
PART 866—IMMUNOLOGY AND MICROBIOLOGY DEVICES
Subpart D—Serological Reagents


§866.3900   Varicella-zoster virus serological reagents.

(a) Identification. Varicella-zoster virus serological reagents are devices that consist of antigens and antisera used in serological tests to identify antibodies to varicella-zoster in serum. The identification aids in the diagnosis of diseases caused by varicella-zoster viruses and provides epidemiological information on these diseases. Varicella (chicken pox) is a mild, highly infectious disease, chiefly of children. Zoster (shingles) is the recurrent form of the disease, occurring in adults who were previously infected with varicella-zoster viruses. Zoster is the response (characterized by a rash) of the partially immune host to a reactivation of varicella viruses present in latent form in the patient's body.

(b) Classification. Class II (performance standards).

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