Typhim Vi is a vaccine used to prevent typhoid fever, a serious disease caused by the bacterium Salmonella enterica serotype Typhi. It is an inactivated (killed) vaccine, meaning it contains killed bacteria to stimulate the body's immune response without causing the disease. Typhim Vi is administered via injection, typically into the upper arm, and is recommended for individuals traveling to areas where typhoid fever is prevalent, or for those who may be at increased risk of exposure to the disease. The vaccine is known for its effectiveness in providing immunity against typhoid fever, although booster doses may be required for ongoing protection. It is generally well-tolerated, with side effects usually being mild and temporary.