If I Had Chickenpox as a Child, Do I Still Need the Varicella Vaccine for Immigration?
Quick Answer
Not necessarily. A documented history of chickenpox disease may satisfy the varicella immunity requirement for immigration. However, the history must be documented by a healthcare provider. Titer testing is also an excellent option to confirm immunity from prior infection.
Prior Chickenpox Disease and Varicella Immunity
Natural infection with varicella-zoster virus (chickenpox) typically produces long-lasting immunity. ACIP recognizes prior varicella disease as evidence of immunity, and this is accepted for immigration purposes. If you had chickenpox as a child, you may not need the varicella vaccine — but you will need to provide documentation of the prior illness.
Documentation Required for Prior Chickenpox
To use a history of chickenpox disease as evidence of varicella immunity, the history must be documented by a healthcare provider. Acceptable documentation includes: a written statement from a physician, nurse practitioner, or other licensed healthcare provider confirming a diagnosis of varicella disease; medical records documenting chickenpox; or a parent's verbal report (which may be acceptable in some circumstances, particularly for children). Self-reported history without any supporting documentation is generally not sufficient on its own.
Titer Testing: The Most Reliable Option
If you believe you had chickenpox but lack documentation, varicella titer testing is the most reliable way to confirm immunity. A positive varicella IgG titer demonstrates immunity regardless of whether it came from prior infection or prior vaccination. Titer testing is included in our flat fee and results are typically available within 2–5 business days. If your titer is positive, no vaccination is needed.
What Happens Without Documentation
If you believe you had chickenpox but cannot provide documentation and decline titer testing, the civil surgeon will likely require you to receive the varicella vaccine. The varicella vaccine is a 2-dose series given at least 4 weeks apart. Receiving the vaccine when you are already immune from prior infection is safe — it will not cause harm.
Shingles History Does Not Satisfy the Requirement
Having had shingles (herpes zoster) — which is caused by reactivation of the varicella-zoster virus — does not automatically satisfy the varicella immunity requirement for immigration. While shingles indicates prior varicella infection, the civil surgeon may still require titer testing or documentation of prior chickenpox to formally document immunity on Form I-693.
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