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Serologic profiles of Q fever patients from Cayenne, French Guiana, and Marseille, France*
| Profile | Cayenne area, n = 115 | Marseille area, n = 182 | P |
|---|---|---|---|
| IgG phase I titer < 800, no. (%) | 49 (43) | 102 (56) | 0.024 |
| IgG phase I titer ≥ 800, no. (%) | 66 (57) | 80 (44) | 0.024 |
| IgG phase I titer ≥1,600, no. (%) | 42 (36) | 39 (21) | 0.03 |
| IgG phase I titer ≥ 3,200, no. (%) | 21 (18) | 21 (11) | 0.1 |
| IgG phase I titer ≥ 6,400, no. (%) | 10 (9) | 14 (8) | 0.9 |
Adapted from Edouard and others.38
