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Table 4 Relative risks of developing redness at the bite site correlated to various risk factors.

From: Small risk of developing symptomatic tick-borne diseases following a tick bite in the Netherlands

  Exposed individuals Redness on bite site Relative risk (95% CI) P value
>24 h 30/193 5/30 2.47 (0.92 - 6.60) 0.0801
Borrelia 43/190 5/43 1.55 (0.57 - 4.22) 0.3647
Rickettsia 41/190 3/41 0.84 (0.25 - 2.80) 1
Ehrlichia 27/182 2/27 0.96 (0.23 - 4.04) 1
Babesia 26/190 2/26 0.90 (0.22 - 3.74) 1
Any infection 98/190 10/98 1.56 (0.59 - 4.13) 0.4382