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The current injectable **Typhoid vaccine** (Vi polysaccharide) provides protection that lasts for approximately ___________?

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A) 5 years
B) 1 year
C) 10 years
D) 3 years

Correct Answer: D) 3 years

Reason: The standard injectable Vi polysaccharide Typhoid vaccine offers protection that typically lasts for about 3 years, requiring booster doses thereafter. Related MCQs: The newer Typhoid Conjugate Vaccine (TCV) may offer longer-lasting immunity, especially for children.

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