The clinical test that is used for the diagnosis of typhoid is:
a. ELISA
b. ESR
c. PCR
d. Widal
The answer is the option (d) Widal-Test
Explanation: ELISA is used to diagnose AIDS. PCR amplifies gene copies to obtain a particular gene sequence. ESR test determines the sedimentation rate of RBCs and is used as a diagnostic tool for inflammation. Widal test is used to diagnose typhoid.