Which test is used to diagnose Typhoid fever?

Correct option is A

The Widal Test is the most commonly used test to diagnose Typhoid fever, which is caused by Salmonella typhi bacteria. The test detects specific antibodies against these bacteria in a patient’s blood, helping confirm the infection.
Explanation of Each Option:
· Widal Test: Correct answer; detects antibodies against Salmonella typhi bacteria in Typhoid fever.
· Millard’s Test: Incorrect; not related to Typhoid.
· Kahn Test: Incorrect; used for Syphilis detection.
· Mantoux Test: Incorrect; used for Tuberculosis (TB) diagnosis.