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A patient has sustained high fever, stomach pain and constipation. Salmonella typhi is confirmed by the:

AWidal test
BELISA test
CBiopsy test
DMantoux test
Answer & Solution
Correct answer: A. Widal test
1. Salmonella typhi causes typhoid. 2. The Widal test confirms it. 3. Typhoid Mary was a famous carrier. _Source: syllabus Biology, Chapter 8, Human Health and Disease._
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