A person suspected to suffer from AIDS isadvised to undergo diagnostic test

Widal test is diagnostic test of

A certain patient is suspected to be suffering from AIDS. Which diagnostic technique will you recommend for detection?

Name the diagnostic test for AIDS.

Name the diagnostic test for AIDS.

A person suffering from beri-beri.

If certain patient is suspected to be suffering from typhoid. Which diagnostic technique will you recommend for its detection?

A person suffering from scurvy.