Which of the following methods is adopted for screening HIV infection ?
Correct answer: C. ELISA followed by western blot technique
- A. Virus isolation
- B. Western blot followed by ELISA
- C. ELISA followed by western blot technique
- D. Polymers chain reaction
Explanation
The conventional HIV testing sequence uses ELISA as the screening test, followed by Western blot confirmation of reactive results. PCR is useful for early infection and special diagnostic situations but is not the traditional first-line screening method.
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