Lyme Disease By The Numbers

Any way you slice it, Lyme disease is an expanding problem. The number of confirmed cases has roughly doubled in the past decade. The map shows the distribution of reported 2004 cases of Lyme disease (in red) as well as the presence of the ticks that can cause it (in yellow and blue). Both the map and the information below confirm that most cases are still clustered in the Northeast and Midwest.

Rhode Island

Incidence Per 100,000: 68.39

Total Cases: 706

Pennsylvania

Incidence Per 100,000: 46.34

Total Cases: 5,730

Connecticut

Incidence Per 100,000: 40.28

Total Cases: 1,403

New Jersey

Incidence Per 100,000: 33.42

Total Cases: 2,887

New York

Incidence Per 100,000: 28.13

Total Cases: 5,399

Delaware

Incidence Per 100,000: 25.93

Total Cases: 212

Massachusetts

Incidence Per 100,000: 23.81

Total Cases: 1,532

New Hampshire

Incidence Per 100,000: 14.76

Total Cases: 190

Wisconsin

Incidence Per 100,000: 13.52

Total Cases: 740

Maine

Incidence Per 100,000: 13.40

Total Cases: 175

Maryland

Incidence Per 100,000: 12.54

Total Cases: 691