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FOR SURVEILLANCE purposes, Lyme disease (LD) is defined as the presence of an erythema migrans rash ≥5 cm in diameter or laboratory confirmation of infection with Borrelia burgdorferi and at least one objective sign of musculoskeletal, neurologic, or cardiovascular disease.1 In 1982, CDC initiated surveillance for LD, and in 1990, the Council of State and Territorial Epidemiologists adopted a resolution that designated LD a nationally notifiable disease. This report summarizes surveillance data for LD in the United States during 1994.
In 1994, 13 083 cases of LD were reported to CDC by 44 state health departments, 4826 (58%) more than the 8257 cases reported in 1993. As in previous years, most cases were reported from the northeastern and north-central regions. The overall incidence of reported LD was 5.2 per 100 000 population. Eight states reported incidences of more than 5.2 per 100 000 (Connecticut,
Lyme Disease—United States, 1994. JAMA. 1995;274(2):111. doi:10.1001/jama.1995.03530020027012