Therefore, even vaccinated travelers should be cautious in selecting their food and water. The oral vaccine consists of 4 capsules containing live attenuated bacteria. They are taken every other day for seven days. The oral vaccine is effective for travelers to infected areas for five years. The entire 4 doses should be repeated every 5 years if the person is at continued risk.
Reactions are rare and include nausea, vomiting, abdominal cramps, and skin rash.
The injectable vaccine consists of a primary series of two shots, spaced at least 4 weeks apart. A booster dose given every 3 years provides continued protection for repeated exposure. If there is insufficient time for two doses a month apart, an accelerated schedule of three shots a week apart may be administered. The accelerated schedule may be less effective. CDC CDC recommends a typhoid vaccination for those travelers who are going off the usual tourist itineraries, traveling to smaller cities and rural areas, or staying for six weeks or more.