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Table 2 Sensitivity of detection for dried blood specimens at different parasite densities and storage times

From: Dried Plasmodium falciparum-infected samples as positive controls for malaria rapid diagnostic tests

   Sensitivity
   Week 1 Week 4 Week 12
RDT1 200 parasites /μl 100 100 100
  2,000 parasites /μl 100 100 100
RDT2 Pf (Pan) 200 parasites /μl 100 (22)† 100 (75)† 100 (12.5)†
  2,000 parasites /μl 100 (100) 100 (100) 100 (80)#
RDT3 200 parasites /μl 100 100 100
  2,000 parasites /μl 100 100 100
RDT4 200 parasites /μl 100 100 100
  2,000 parasites /μl 100 100 100
RDT5 200 parasites /μl 55.5‡ 12.5‡ 37.5
  2,000 parasites /μl 100 100 100
RDT6 Pf (Pan) 200 parasites /μl 89 (67) 100 (33) 75 (0)*
  2,000 parasites /μl 100 (89) 100 (86) 100 (80)
RDT7 200 parasites /μl 100 100 87.5#
  2,000 parasites /μl 100 100 100
RDT8 200 parasites /μl 100 100 100
  2,000 parasites /μl 100 100 100
RDT9 200 parasites /μl 100 100 87.5#
  2,000 parasites /μl 100 100 100
RDT10 Pf (Pan) 200 parasites /μl 100 (0 )* 100 (0 )* 100 (33)
  2,000 parasites /μl 100 (100) 100 (100) 100 (100)
  1. † Pan band was weakly reactive for two of three parasites at baseline.
  2. ‡ Weakly reactive for all three parasites at baseline.
  3. * Pan test negative for two of three parasites and weakly reactive for the one positive parasite at baseline.
  4. # Reactivity lost for one sample stored at 35°C.