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Contamination with HIV antibody may be responsible for false positive results in specimens tested on automated platforms running HIV 4th generation assays in a region of high HIV prevalence

Fig 2

Determining sero-positivity at first and second testing episodes.

The number of negative results decreased and the number of positive results increased on second testing on the Roche analyser at UN laboratory.

Fig 2

doi: https://doi.org/10.1371/journal.pone.0182167.g002