Table.

Dosage and schedule for typhoid fever vaccination^*

Vaccination	Age (yrs)	Dose (mode of administration)	No. of doses	Dosing interval	Boosting interval
Oral live attenuated Ty21a vaccine (Vivotif)
Primary series	≥6	1 capsule (oral)	4	48 hrs	NA
Booster	≥6	1 capsule (oral)	4	48 hrs	Every 5 yrs
Vi capsular polysaccharide vaccine (Typhim Vi)
Primary series	≥2	0.50 mL (intramuscular)	1	NA	NA
Booster	≥2	0.50 mL (intramuscular)	1	NA	Every 2 yrs

^*Adapted from CDC Health Information for International Travel 2010 [55].

NA = Not applicable