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. 2009 Dec 9;8:284. doi: 10.1186/1475-2875-8-284

Table 5.

Average stage-specific detection limit of clinical specimens (n = 3 per species) by QPCR.

Parasite stage specific limit of detection
rDNA copy number per reaction (parasites per reaction)

Single Rings Double Rings Growing Trophozoites Mature Trophozoites Gametocytes Mature Schizonts Immature Schizonts
P. falciparum 6.21 ± 2.0
(1.08 ± 0.34)
1.74 ± 1.09 (0.29 ± 0.18) 30
(5)

P. vivax 3.66 ± 2.3
(0.60 ± 0.4)
4.51 ± 0.4
(0.75 ± 0.07)
21.72
(3.6)
0.590
(0.098)

P. malariae 5.90 ± 4.29 (0.95 ± 0.75) 4.74 ± 2.490 (0.78 ± 0.415) 82.2
(13.7)
3.03 ± 1.7
(0.5 ± 0.3)
4.475 ± 1.9
(0.705 ± 0.2)
4.15 ± 0.94 (0.69 ± 0.16)

P. ovale 0.56 ± 0.18 (0.08 ± 0.02) 18 ± 4.5
(3 ± 0.75)
0.18
(0.03)
6
(1)

LOD are stated as either ribosomal DNA copy number or parasites per reaction with standard error where multiple stages were present in specimens.