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Mar 1, 2019 · The typhoid vaccine comes in two forms: "Ty21a" is a weakened form of the live bacteria and is given by mouth to people 6 years of age and older. A total of four capsules are taken one every other day. The "polysaccharide" vaccine is made from the sugar that coats the surface of the bacteria.
There are 2 types of typhoid vaccine: The typhoid shot. The oral typhoid vaccine (swallowed as a pill) Frequently Asked Questions. Why is the typhoid vaccine important? Typhoid can lead to serious complications, like a high fever that can last for weeks or months. As many as 3 in 10 people who get sick with typhoid and don’t get treatment will die.
The Vi polysaccharide vaccine is recommended for use as a single dose in individuals aged ≥2 years and confers protection in the range of ~55–65% for 2–3 years. Overall, Ty21a and the Vi polysaccharide vaccines are estimated to have been used in several million and several hundred thousand doses respectively over 3 decades.
