Varicella (Chickenpox) Titer Test
Immunity Titer Guide
Content last reviewed 2026-09-12 · Educational information — not medical advice
Quick answer
Proves chickenpox immunity via varicella-zoster IgG. Required across healthcare onboarding because 'I had it as a kid' fails verification for a meaningful share of adults whose antibody levels have faded below detection thresholds.
Who this covers
Who needs it
Hospital/clinic staff, clinical students, teachers, childcare workers — anywhere varicella exposure threatens vulnerable people.
Result pathways
Positive = done. Negative = two-dose vaccine series then re-titer. Documented disease history WITHOUT antibodies still needs vaccination under ACIP guidance.
Shingles connection
Prior shingles confirms past infection but doesn't guarantee detectable IgG — titer anyway if compliance demands proof.
Order the required tests
Direct-access laboratory testing — no doctor visit needed. Results arrive as forwardable PDFs that satisfy most compliance offices.
We may earn a commission when you order through partner links. This guide is educational and never replaces advice from your program office, employer, or healthcare provider.
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