Research Article
Seroprevalence of Leptospirosis among High-Risk Individuals in Morocco
Table 2
Leptospiral seropositivity rates according to antibodies (IgM/IgG), age groups and occupational risk in Casablanca (Morocco).
| | Antibodies | Age group (years) | Control group (N = 125) n (%) | Slaughterhouse workers (N = 208) n (%) | Poultry market workers (N = 121) n (%) | Fish market workers (N = 161) n (%) | Total workers (N = 490) n (%) |
| | IgM (-) IgG (-) | | 112 (89.6) | 177 (85.1) | 76 (62.8) | 119 (73.9) | 372 (75.9) | | IgM (+) IgG (-) | 19–39 | 6 (4.8) | 6 (2.9) | 4 (3.3) | 4 (2.5) | 14 (2.9) | | 40–60 | 0 (0.0) | 10 (4.8) | 4 (3.3) | 5 (3.1) | 19 (3.9) | | >60 | 0 (0.0) | 0 (0.0) | 2 (1.7) | 1 (0.6) | 3 (0.6) | | Sub total | | 6 (4.8) | 16 (7.7) | 10 (8.3) | 10 (6.2) | 36 (7.3) | | IgM (-) IgG (+) | 19–39 | 0 (0.0) | 2 (1.0) | 8 (6.6) | 7 (4.3) | 17 (3.5) | | 40–60 | 7 (5.6) | 8 (3.8) | 17 (14.0) | 18 (11.2) | 43 (8.8) | | >60 | 0 (0.0) | 1 (0.5) | 1 (0.8) | 5 (3.1) | 7 (1.4) | | Sub total | | 7 (5.6) | 11 (5.3) | 26 (21.5) | 30 (18.6) | 67 (13.7) | | IgM (+) IgG (+) | 19–39 | 0 (0.0) | 1 (0.5) | 4 (3.3) | 0 (0.0) | 5 (1.0) | | 40–60 | 0 (0.0) | 3 (1.4) | 5 (4.1) | 2 (1.2) | 10 (2.0) | | >60 | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | | Sub total | | 0 (0.0) | 4 (1.9) | 9 (7.4) | 2 (1.2) | 15 (3.1) | | All seropositivity | | 13 (10.04) | 31 (14.9) | 45 (37.2) | 42 (26.1) | 118 (24.1) |
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