Table 1.

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

MouseNo. of ticks infected with B. burgdorferiNo. of uninfected ticksPχ2a
TestedAcquiring E. phagocytophila(%)TestedAcquiring E. phagocytophila (%)
PI-387116 (54.5)94 (44.4)0.65
PI-38863 (50.0)63 (50.0)1.00
PI-38985 (62.5)128 (75.0)0.85
PI-39074 (57.1)73 (42.9)0.59
PI-39172 (28.6)135 (38.5)0.67
Total3920 (51.3 ± 15.9)b 4724 (51.1 ± 14.4)b 0.98
  • a Pχ2, probability for a chi-square test distribution.

  • b ±95% confidence interval.