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. 2015 Aug 7;14:306. doi: 10.1186/s12936-015-0817-x

Table 6.

Parasitaemia data by microscopy and qPCR and pre-patent periods by group

Group 1 Group 2 Group 3 Group 4 Group 5 Group 6
2,500 PfSPZ 10 µL × 2 IM 2,500 PfSPZ 50 µL × 2 IM 2,500 PfSPZ 250 µL × 2 IM 3,200 PfSPZ 500 µL × 1 DVI 25,000 PfSPZ 10 µL × 2 IM 75,000 PfSPZ 10 µL × 2 IM
N = 6 N = 6 N = 6 N = 6 N = 6 N = 6
Number of volunteers who became thick blood smear positive (TBS+) 4 1 2 6 6 6
Listing of times to TBS+ (days) 14.0, 15.0, 15.0, 12.0 14.0 16.0, 14.0 11.0, 10.4, 12.3, 10.9, 11.9, 12.2 12.4, 12.4, 13.3, 12.4, 11.1, 12.0 11.8, 11.0, 11.0, 11.0, 12.0, 12.0
Geometric mean time to TBS+ (days) 13.9 14.0 15.0 11.4 12.2 11.4
Listing of parasite density at time of TBS+ (parasites/µL blood) 10.0, 48.0, 6.0, 5.0 34.0 10.0, 27.0 5.0, 1.3, 10.0, 8.0, 12.0, 14.0 4.0, 10.0, 5.8, 10.0, 3.8, 3.3 56.0, 0.8, 0.8, 6.0, 3.3, 6.6
Geometric mean parasite density at time of TBS+ (parasites/µL blood) 11.0 34.0 16.4 6.6 5.5 4.1
Listing of times to qPCR+ (days) 11.0, 11.3, 11.4, 10.0 9.1 11.0, 8.0 6.9, 9.1, 8.0, 8.0, 9.0, 8.9 10.1, 8.0
9.1, 7.0
7.0, 7.1
6.9, 7.0, 7.0, 7.0
7.0, 6.0
Geometric mean of time to qPCR+ (days) 10.9 9.1 9.3 8.3 7.9 6.8