Typhim Vi (Salmonella Typhi Purified Vi-Capsular Polysaccharide)

The Salmonella Typhi vaccine is used to prevent typhoid fever, a serious illness caused by the bacterium "Salmonella enterica" serotype Typhi. Here are some key points about this vaccine:

1. Types of Typhoid Vaccines:
- Inactivated Typhoid Vaccine (Vi capsular polysaccharide vaccine):
- Administered as an injection (shot).
- Suitable for people 2 years and older.
- Recommended at least 2 weeks before travel.
- Repeated doses every 2 years for ongoing protection.
- Live Attenuated Typhoid Vaccine (Ty21a strain):
- Administered orally (by mouth).
- Suitable for people 6 years and older.
- Taken as 4 capsules (one every other day).
- The last dose should be taken at least 1 week before travel.
- Booster vaccine needed every 5 years for continued protection.

2. Who Should Get Vaccinated?:
- Travelers: Especially those visiting regions where typhoid is common.
- Close Contacts: People in contact with a typhoid carrier.
- Laboratory Workers: Those handling "Salmonella typhi" bacteria.
- Storage: Live typhoid vaccine capsules must be stored in a refrigerator (not frozen).

3. Routine Vaccination in the U.S.:
- Routine typhoid vaccination is not recommended in the United States.
- However, it is crucial for travelers to areas where typhoid is prevalent.

Remember that while the vaccine provides protection, practicing safe food and water hygiene during travel remains essential. Consult your healthcare provider for personalized advice on typhoid vaccination.