Characteristic | No. (%) of patients | |
---|---|---|
IgM-positive or IgG-positive n = 38 | IgM-positive n = 29 | |
Sign/symptom | ||
Systemic | ||
Any | 30 (79) | 25 (86) |
Fever (reported or objective) | 20 (53) | 17 (59) |
Fatigue | 18 (47) | 14 (48) |
Headaches | 12 (32) | 10 (34) |
Anorexia | 5 (13) | 5 (17) |
Lymphadenopathy | 3 (8) | 3 (10) |
Malaise | 9 (24) | 7 (24) |
Lethargy | 2 (5) | 1 (3) |
Cutaneous | ||
Any | 27 (71) | 23 (79) |
Erythema migrans | 15 (39) | 14 (48) |
Cellulitis | 2 (5) | 2 (7) |
Other | 10 (26) | 7 (24) |
Musculoskeletal | ||
Any | 20 (53) | 13 (45) |
Myalgia | 15 (39) | 12 (41) |
Arthralgia | 7 (18) | 4 (14) |
Migratory pains | 3 (8) | 3 (10) |
Arthritis | 4 (10) | 1 (3) |
Neurological | ||
Any | 7 (18) | 5 (17) |
Nuchal rigidity | 2 (5) | 1 (3) |
Facial paralysis | 4 (10) | 3 (10) |
Polyradiculopathy | 1 (3) | 1 (3) |
Cardiac | ||
Any | 2 (5) | 2 (7) |
Atrioventricular block | 2 (5) | 2 (7) |
Ophthalmic | ||
Any | 1 (3) | 1 (3) |
Conjunctivitis | 1 (3) | 1 (3) |
History | ||
Reported travel in New England | 3 (8) | 3 (10) |
Tick bite reported* | 12 (32) | 11 (38) |
*No ticks were brought for analysis.