Salmonella Typhi Vaccine is a vaccine used to help prevent typhoid fever, which is caused by a bacteria called Salmonella typhi. The organism which causes typhoid fever can be passed on through contaminated food or water. If you are in an area where there is a risk of getting typhoid fever, in addition to getting vaccinated with Salmonella Typhi Vaccine, it is also very important to be careful with your personal, food and water hygiene. Hygiene will also help avoid illness caused by other bacteria in the water.

Salmonella Typhi Vaccine works by causing your body to produce its own protection against typhoid fever. It does this by making substances, called antibodies, which destroy the Salmonella typhi organism. If you have been vaccinated against Salmonella typhi, your body is able to attack that organism if you come in contact with it.

Usually it takes several weeks after vaccination to fully develop antibodies against typhoid fever. Most people will make enough antibodies against Salmonella typhi. However, as with all vaccines, 100% protection cannot be guaranteed.

No. Salmonella Typhi Vaccine will not cause typhoid fever. It just helps your body in producing antibodies against it, so that your body can fight the infection if you are exposed to it in future.

You must have one dose at least 2 weeks before you may be exposed to typhoid fever. If you are continually or repeatedly exposed to the Salmonella typhi organism, a booster dose is recommended every 2 to 3 years.

Salmonella Typhi Vaccine is given as an injection, usually into your upper arm muscle, by a doctor or nurse. For children, the muscle of the upper thigh may be preferred. Salmonella Typhi Vaccine should not be injected directly into a vein, or any blood vessel.