Table 2.

Acquisition of B. burgdorferi by ticks infected with E. phagocytophila and by uninfected ticks

MouseNo. of ticks infected with E. phagocytophilaNo. of uninfected ticksPχ2a
TestedAcquiring B. burgdorferi(%)TestedAcquiring B. burgdorferi (%)
PI-39764 (66.7)1410 (71.4)0.83
PI-39887 (87.5)97 (77.8)0.60
PI-3991111 (100.0)77 (100.0)1.00
PI-4001211 (91.7)88 (100.0)0.40
PI-401118 (72.7)98 (88.9)0.39
Total4841 (85.4 ± 10.0)b 4740 (85.1 ± 10.3)b 0.97
  • a Pχ2, probability for a chi-square test distribution.

  • b ±95% confidence interval.