Tick bites and Lyme disease as playing outdoors has been identified as a high-risk activity.

Local infection rates in nymphal ticks may be low (< 20%) with a low risk of infection (<5%) from a detected, attached tick (most people who get Lyme disease do not notice the tick).

The probability of transmission of Lyme disease spirochetes increases the longer an infected tick is attached 0% at 24 hours, 12% at 48 hours, 79% at.