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Table 2 Bacterial loads dynamics in infected fleas*

From: Transmission efficiency of the plague pathogen (Y. pestis) by the flea, Xenopsylla skrjabini, to mice and great gerbils

Days p.i. Positive rate % (infected/total fleas) Bacterial load (CFU/flea)
1 80 (4/5) 3.16 ± 5.09 × 105
2 100 (5/5) 4.90 ± 0.65 × 104
3 100 (5/5) 1.32 ± 0.93 × 105
4 80 (4/5) 1.04 ± 1.10 × 105
5 60 (3/5) 6.40 ± 0.67 × 104
6 100 (5/5) 7.30 ± 1.01 × 104
7 80 (4/5) 7.10 ± 0.67 × 104
8 40 (2/5) 8.10 ± 1.08 × 104
9 40 (2/5) 3.20 ± 0.64 × 104
10 20 (1/5) 1.03 ± 0.22 × 104
11 20 (1/5) 4.02 ± 0.80 × 103
  1. *Fleas were fed with great gerbil blood with Y. pestis of 1.0 × 1010 CFU/ml.