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. 2020 Feb 28;15(2):e0229424. doi: 10.1371/journal.pone.0229424

Fig 6. HIV-2 seropositive clinical specimens.

Fig 6

Duplicate measurements of each sample showed consistent results, with the greatest variability observed for samples at or below 1,000 HIV-2 RNA copies/ml. Replicate values showed good correlation (Pearson r = 0.9723, p<0.0001) and linearity (R2 = 0.0.9454: Y = 0.9869*X + 0.0634). Of the 220 HIV-2 positive clinical specimens tested, 20 specimens (9.1%) were RNA positive in one of two replicates and 82 specimens (37.3%) did not have detected RNA in either replicate by the WRAIR assay.