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Table 1 Transmission efficiencies of infected fleas held at different experimental temperatures during the late phase period

From: Effects of temperature on the transmission of Yersinia Pestis by the flea, Xenopsylla Cheopis, in the late phase period

Temp (°C) Days p.i. Flea infection prevalence (%) Average no. fed, infected fleas per mouse (total in treatment group) No. of mice infected (exposed) Percent per flea transmission efficiency (95% CI)
10 7 100 5.0 (35) 3 (7) 9.81 (2.74, 25.74)
  10 97.1 5.8 (35) 1 (6) 2.75 (0.17, 12.75)
  14 75.9 6.8 (54) 3 (8) 6.31 (1.75, 16.31)
23 7 88.6 6.3 (44) 0 (7) 0 (0, 6.60)
  10 95.2 6.0 (42) 4 (7) 12.48 (4.33, 30.48)
  14 92.3 5.6 (39) 4 (7) 14.11 (4.73, 34.11)
  17 100 4.3 (30) 4 (7) 17.42 (6.04, 37.42)
  21 94.1 4.9 (34) 5 (7) 21.77 (8.67, 48.81)
  28 79.2 4.0 (24) 1 (6) 4.27 (0.25, 20.27)
27 7 98.1 6.5 (52) 0 (8) 0 (0, 5.80)
  10 96.9 4.6 (32) 2 (7) 7.04 (1.30, 23.02)
  14 92.3 5.6 (39) 1 (7) 2.52 (0.15, 11.93)
  17 85.7 4.0 (28) 3 (7) 15.41 (4.03, 44.01)
  21 83.8 5.3 (37) 4 (7) 13.50 (4.75, 31.81)
  28 61.9 5.3 (21) 0 (4) 0 (0, 11.67)
30 7 95.0 5.6 (39) 0 (7) 0 (0, 7.46)
  10 100 5.3 (37) 3 (7) 9.47 (2.64, 25.19)
  14 95.4 6.1 (43) 3 (7) 8.30 (2.32, 22.62)
  17 100 4.1 (29) 2 (7) 7.67 (1.42, 24.58)
  21 93.3 5.0 (30) 0 (6) 0 (0, 9.03)
  28 91.2 6.8 (34) 1 (5) 2.72 (0.18, 12.69)