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. 2000 Apr;68(4):2183–2186. doi: 10.1128/iai.68.4.2183-2186.2000

TABLE 1.

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

Mouse No. of ticks infected with B. burgdorferi
No. of uninfected ticks
Pχ2a
Tested Acquiring E. phagocytophila (%) Tested Acquiring E. phagocytophila (%)
PI-387 11 6 (54.5) 9 4 (44.4) 0.65
PI-388 6 3 (50.0) 6 3 (50.0) 1.00
PI-389 8 5 (62.5) 12 8 (75.0) 0.85
PI-390 7 4 (57.1) 7 3 (42.9) 0.59
PI-391 7 2 (28.6) 13 5 (38.5) 0.67
Total 39 20 (51.3 ± 15.9)b 47 24 (51.1 ± 14.4)b 0.98
a

Pχ2, probability for a chi-square test distribution. 

b

±95% confidence interval.