To confirm garyrr's post, from the CDC.gov web site:
Who should get typhoid vaccine and when?
Routine typhoid vaccination is not recommended in the United States, but typhoid vaccine is recommended for:
- Travelers to parts of the world where typhoid is common. (NOTE: typhoid vaccine is not 100% effective and is not a substitute for being careful about what you eat or drink).
- People in close contact with a typhoid carrier.
- Laboratory workers who work with Salmonella Typhi bacteria.
Inactivated typhoid vaccine (shot)
- One dose provides protection. It should be given at least 2 weeks before travel to allow the vaccine time to work.
- A booster dose is needed every 2 years for people who remain at risk.
Live typhoid vaccine (oral)
- Four doses: one capsule every other day for a week (day 1, day 3, day 5, and day 7). The last dose should be given at least 1 week before travel to allow the vaccine time to work.
- Swallow each dose about an hour before a meal with a cold or lukewarm drink. Do not chew the capsule.
- A booster dose is needed every 5 years for people who remain at risk.
Either vaccine may safely be given at the same time as other vaccines.