Science Source

Surveillance for Lyme Disease — United States, 2008–2015

Classifies:
- States with an average annual incidence during this reporting period of ≥10 confirmed Lyme disease cases per 100,000 population as high incidence
- States that share a border with those states or that are located between areas of high incidence were classified as neighboring states
- All other states as low incidence
Finds that during 2008–2015, a total of 275,589 cases of Lyme disease were reported to CDC (208,834 confirmed and 66,755 probable)
Finds that although most cases continue to be reported from states with high incidence in the Northeast, mid-Atlantic, and upper Midwest regions, case counts in most of these states have remained stable or decreased during the reporting period
Finds that in contrast, case counts have increased in states that neighbor those with high incidence