In NH, there is just under 1 case of confirmed Lyme Disease for every 1000 residents in a 1 year period.
The stats for all states are compiled by the CDC here: http://www.cdc.gov/ncidod/dvbid/lyme...sesbyState.htm
The ATC does not keep records on this important topic.
This poll asks for people's best estimate of the percentage of thru hikers and section hikers who contract Lyme during their 2000 mile trips.