MCQ
Widal test is used for susceptibility of
- AMalaria
- BCholera
- CYellow fever
- ✓Typhoid
(d) Widal's test is the test for the presence of agglutinins to $O$ and $H$ antigens of Salmonella typhi and Salmonella paratyphi in the serum of patients with suspected Salmonella infection.
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Reason: A bone marrow transplant given to a patient with genetic immunodeficiency is an example of artificially acquired passive immunity.
$a \quad\;b \quad\;c \quad\;d$

