Elisa test is performed to test which disease?

Answer: ELISA is used to detect antibodies or antigens and is commonly used to screen for HIV infection (the virus that causes AIDS).

Key points:

• Principle: ELISA (enzyme-linked immunosorbent assay) detects the presence of specific antibodies or antigens in a sample using an enzyme-linked reagent that produces a measurable signal.

• Why this is the correct answer: ELISA is widely used to screen for antibodies to HIV, so it is commonly used in testing related to AIDS.

• Confirmation: A positive ELISA screening result for HIV is usually followed by a confirmatory test (e.g., Western blot or other recommended confirmatory assays).

• Why the other conditions are not correct in this question: typhoid is typically diagnosed by blood culture or Widal test, tuberculosis by sputum microscopy/culture or molecular tests, and diabetes by blood glucose measurements or HbA1c.