Social & Preventive Medicine Calculated positive predictive value of ELISA test for HIV with sensitivity 99%, specificity 99% , prevalence of HIV in population 5/1000 ? A 10 B 70 C 33 D All 💡 Explanation Calculated positive predictive value of ELISA test for HIV with sensitivity 99%, specificity 99% , prevalence of HIV in population 5/1000 ? ✓ Correct Answer: C. 33