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Federal regulations · Through 2026-08-25 · Newer source version available

21 CFR 866.3940: West Nile virus serological reagents.

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Where this section sits in the code
  1. Title 21—Food and Drugs
  2. CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES
  3. SUBCHAPTER H—MEDICAL DEVICES
  4. PART 866—IMMUNOLOGY AND MICROBIOLOGY DEVICES
  5. Subpart D—Serological Reagents

(a) Identification. West Nile virus serological reagents are devices that consist of antigens and antisera for the detection of anti-West Nile virus IgM antibodies, in human serum, from individuals who have signs and symptoms consistent with viral meningitis/encephalitis. The detection aids in the clinical laboratory diagnosis of viral meningitis/encephalitis caused by West Nile virus.

(b) Classification. Class II (special controls). The special control is FDA's guidance entitled “Class II Special Controls Guidance Document: Serological Reagents for the Laboratory Diagnosis of West Nile Virus.” See § 866.1(e) for the availability of this guidance document.

Collected 2026-08-27T02:24:47Z. Source file · JSON

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