@julies - There is a typhoid vaccine you can get, but some doctors are reluctant to give it depending on the situation.
I have some relatives that are foreign missionaries, and typhoid fever is common in the country where they live most of the time.
My uncle ended up having his gallbladder removed when he came down with typhoid fever. After this happened, my aunt looked into getting a vaccine so she wouldn't have to worry about it.
Sometimes when you are traveling on short trips like a vacation, there are so many things you can come down with. If you start with a vaccine for one thing, where do you stop?
If you are going to be in a country where this is prevalent, it certainly wouldn't hurt to talk to your doctor about it.