Typhoid fever oral vaccine explained

This vaccine trains the immune system to recognise Salmonella Typhi before exposure. It is intended for prevention, not for treating an existing fever, diarrhoea or confirmed infection. Protection is not a reason to ignore safe food, safe water or hand hygiene.

Suitability depends on factors such as age, health, pregnancy or immune problems, and medicines that affect the immune response. Oral vaccine schedules and timing before travel must be followed as directed by a qualified clinician or the product information.

Discuss vaccination early with a travel-health clinician. Bring your departure date, destination and itinerary, vaccination history, allergies, regular medicines and details of any current illness. Follow the dose instructions precisely and ask what to do if a dose is vomited or missed.

Use treated water and well-cooked food during travel, wash hands, and seek medical advice promptly for fever or persistent bowel symptoms after returning. The vaccine cannot treat typhoid once infection has developed; antibiotic treatment may then be considered by a clinician.

Seek urgent help for a high or persistent fever with confusion, fainting, severe weakness, severe abdominal pain, repeated vomiting, blood in stool or difficulty drinking. A rash with serious illness also deserves prompt assessment rather than assuming it is a vaccine effect.

Ask whether the oral option fits your health and itinerary, when to start it, how medicines may interact with it, and which symptoms after travel require testing or treatment.