MedicinehospitalEssential

Yellow Fever Virus + Lactose + Sorbitol + L-Histidine + L-Alanin

A live vaccine (YF-VAX) that protects against yellow fever.

Clinical information

Common uses

preventing yellow fever in people aged 9 months and older

Interactions

several other vaccines can be given at separate injection sites
interaction with rabies or Japanese encephalitis vaccines not established
immune globulin did not alter the vaccine response
chloroquine does not affect the vaccine response

Pregnancy: only if clearly needed

Reference information, not medical advice — always follow your doctor or pharmacist. Source: DailyMed, dailymed.nlm.nih.gov, YF-VAX (yellow fever vaccine) label, setid 613aaac9-ec18-4b22-addb-599e1193e6f5 (accessed 2026-08-16)

Approved brands & formulations1

Brand name	Dosage form	Strength	Importer	Category
Yellow Fever Virus + Lactose + Sorbitol + L-Histidine + L-Alanin	Parenteral ( Live Freeze-dried vaccine )	No less than 1000 LD50 or 1600 PFU + 20mg + 10mg + 1.2mg+ 0.7mg in 0.5ml	—	hospital