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Table 3 Plague transmission of X. skrjabini to mice via artificial blood feeding*

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

Days p.i. Flea used ** Mice bit Average flea per mice Infected mice Infection rate (%)
1 60 12 5 0 0
2 60 12 5 1 8.3
3 60 12 5 1 8.3
4 45 12 3.6 1 8.3
5 28 10 2.8 0 0
6 22 10 2.1 1 10.0
7 8 5 1.6 0 0
Total / 73 / 4 5.48
  1. *Fleas were infected twice in artificial feeder containing defibrinated great gerbil blood with Y. pestis (1.0 x 109 CFU/ml).
  2. **The number of fleas decreased as the flea died during the experiment.