For example, in tests for febrile antigens, such as the Widal test or tests for typhoid fever, various antigens characteristic of bacteria like Salmonella typhi (the cause of typhoid fever) or other pathogens that can cause fever may be used.
These tests aid in diagnosing specific infections based on the presence of specific febrile antigens in the body. The reaction to these antigens can indicate an infection and help healthcare professionals in diagnosing and selecting the appropriate treatment.
