How effective is the Typhoid vaccine and which one is better?

drravi

I'm considering getting vaccinated. How effective are the oral and injectable Typhoid vaccines? How long does the protection last, and which one is generally recommended?

isabella

Both oral and injectable typhoid vaccines are effective ways to protect yourself against typhoid fever. The oral vaccine (Ty21a) is taken as a series of capsules and provides protection for up to 5 years, while the injectable vaccine (ViPS) is a single shot that offers protection for about 2–3 years. Both vaccines are recommended for travelers to high-risk areas, and the choice often depends on personal preference, age, and medical history. The good news is that either vaccine significantly reduces the risk of infection, and when combined with good hygiene and safe food practices, it provides strong, reliable protection — giving peace of mind while traveling or living in areas where typhoid is common.

ava

Both the oral and injectable typhoid vaccines are effective in providing strong protection against infection. The injectable (Vi polysaccharide) vaccine offers about 2 to 3 years of protection and is suitable for adults and children over 2 years old. The oral (live attenuated) vaccine provides protection for around 5 years and is given in multiple doses, typically recommended for people over 6 years of age. Effectiveness ranges from 50% to 80%, depending on the vaccine type and local exposure risk. Both are safe and widely used, but the choice often depends on convenience, age, and medical advice. For frequent travelers or long-term protection, the oral vaccine is often preferred, while the injectable option works well for quick and reliable immunity.