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Table 3 Xenopsylla cheopis mass transmission summary

From: Biovar-related differences apparent in the flea foregut colonization phenotype of distinct Yersinia pestis strains do not impact transmission efficiency

Days PI

No. of fleas fed

% infected

CFU/infected flea

No. of fleas blocked

CFU transmitted

X. cheopis infected with KIM6+ mass transmission summary

 Experiment 1 (1.10 × 109 CFU/ml blood)

  0

–

80

1.20E+05

–

–

  7

80

95

6.85E+05

8

607

  14

88

100

7.81E+05

13

710

 Experiment 2 (2.46 ×109 CFU/ml blood)

  0

–

100

2.19E+05

–

–

  7

206

95

6.35E+05

11

10,749

  14

120

95

4.50E+05

7

1942

 Experiment 3 (6.70 × 108 CFU/ml blood)

  0

–

100

1.08E+05

–

–

  7

206

100

2.82E+05

7

12,957

  14

120

90

2.69E+05

7

620

X. cheopis infected with CO92 mass transmission summary

 Experiment 1 (1.03 × 109 CFU/ml blood)

  0

–

100

2.76E+03

–

–

  7

132

90

1.11E+05

27

2583

  14

65

95

3.46E+05

27

2353

 Experiment 2 (2.27 × 109 CFU/ml blood)

  0

–

100

8.87E+04

–

–

  7

183

95

2.62E+05

13

1714

  14

81

100

3.37E+05

15

405

X. cheopis infected with CO92gly mass transmission summary

 Experiment 1 (2.06 × 109 CFU/ml blood)

  0

–

95

2.51E+04

–

–

  7

103

85

4.04E+05

12

143

  14

52

85

1.81E+05

9

177

 Experiment 2 (1.45 × 109 CFU/ml blood)

  0

–

65

1.19E+04

–

–

  7

92

90

7.14E+05

5

2233

  14

54

75

8.94E+04

7

7

 Experiment 3 (6.70 × 108 CFU/ml blood)

  0

–

95

7.00E+04

–

–

  7

88

75

7.32E+05

4

5

  14

55

85

9.45E+05

5

961

  1. Abbreviation: PI, post-infection