how long before travel typhoid vaccine
Live typhoid vaccine (oral). 1  Four doses: one capsule every other day for a week (day 1, day 3, day 5, and day 7). 2  The last dose should be given at least 1 week before travel to allow the vaccine time to work. 3  Swallow each dose about an hour before a meal with a cold or lukewarm drink.ive typhoid vaccine (oral). 1  Four doses: one capsule every other day for a week (day 1, day 3, day 5, and day 7). 2  Swallow each dose about an hour before a meal with a cold or lukewarm drink. 3  A booster dose is needed every 5 years for people who remain at risk.