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Table 1 Numbers of RDT brands showing false positive test lines when run with blood of malaria free subjects and substitute liquids

From: Buffer substitution in malaria rapid diagnostic tests causes false-positive results

RDT format Numbers of different RDT brands assessed Numbers of RDTs brands showing false positive test lines when run with substitute liquid*
Saline Distilled water Tap water Any substitute liquid
Two band 6 3 (1) 3 (1) 4 (1) 4 (1)
Three band 17 12 (9) 11 (10) 12 (9) 12 (10)
Four band 4 1 (0) 3 (2) 4 (2) 4 (2)
Total 27 16 (10) 17 (13) 20 (12) 20 (13)
  1. *Numbers refer to the different RDT brands for which false positive test lines were visible in at least one sample. Between brackets: numbers of RDT brands for which false positive lines were visible in the samples of at least three subjects.