Yellow Fever Virus Strain 17D-204 Live Antigen
Yellow Fever Virus Strain 17D-204 Live Antigen is a live attenuated vaccine used to prevent yellow fever, a serious viral disease transmitted by infected mosquitoes in parts of Africa and South America. It is recommended for travelers to endemic regions and may be required for entry into certain countries where the disease is prevalent.
A live attenuated vaccine providing protection against yellow fever for travelers to endemic regions and at-risk populations.
Key facts at a glance
- RxNorm
- 804187
- Generic
- Yellow Fever Virus Strain 17d-204 Live Antigen
- Class
- unclassified
- Brands
- Stamaril, YF-Vax
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- injection, suspension
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Prevention of yellow fever disease in individuals traveling to or residing in endemic areas of sub-Saharan Africa and tropical South America. May be required for travelers entering certain countries where yellow fever transmission occurs.
Contains a live but weakened (attenuated) form of the yellow fever virus using the 17D-204 strain, which stimulates the immune system to produce protective antibodies without causing yellow fever disease in immunocompetent individuals.
Contraindicated in immunocompromised patients, infants under 6-12 months (depending on risk), pregnant women, and individuals with severe egg or protein allergies. A single dose provides long-lasting immunity, though some countries may require proof of vaccination within the last 10 years. Should be administered at least 10 days before potential exposure. International vaccination certificates are valid for life.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 31, 2026. · Read our editorial policy