21 CFR 866.3900
§ 866.3900 Varicella-zoster virus serological reagents.
United States · 21 CFR — Food and Drugs · Status: effective
Cite this
- Citation
- 21 CFR 866.3900, § 866.3900 Varicella-zoster virus serological reagents, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/89571
- Permanent ID
ys:prov:89571@1- SHA-256
e6b7b6edd2db67e3673e65c5ebe39bcf8537713b5ce660d5a4b4708c912edf31
The hash is SHA-256 of this version's text, with every run of whitespace collapsed to a single space and the ends trimmed. The ID always leads back here, and checking it says whether the text you cited is still the current version.
Full text
(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).
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.