Dosages 25 mcg usage & treatment typhoid vaccine vi polysacchride 25 mcg is used for treatment of vaccine, flu shot, flu vaccine, mmr vaccine, vaccination, immunization, polio, tetanus vaccine, and influenza vaccination. drugs total is supplier and distributor of typhoid vaccine vi polysacchride 25 mcg all other prescription and non prescription generic drugs, brand drugs, generic vaccines and veterinary medicines. We export to wholesalers, pharmacies, hospitals, government and non government organizations (ngo).