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==Epi practicals12 April 2021=====12 April 2021===Is this test useful : Practical - HIV===
*Q1
*Q6
We should advise the director that donors should be informed to proceed to an additional confirmation test, not just be informed simple positive result.
===Is this test useful: COVID-19 Practical===
*Question 1
{|class="wikitable"
|-
!
!RT-PCR Positive
!RT-PCR Negative
|-
!IgG/M RDT Positive
|91
|6
|-
!IgG/M RDT Negative
|7
|174
|-
!sum
|98
|180
|}
*Sensitivity=<math>\frac{91}{98} = 92.9\%</math>
*Specificity=<math>\frac{174}{180} = 96.7\%</math>
*Question 2
