Table 3.
Characteristics of cases diagnosed with Cryptosporidium infection in Denmark 2010-2024, stratified by Cryptosporidium species.
| Overall | C. parvum | C. hominis | C. mortiferum | C. meleagridis | Other species | Confirmed* | Not confirmable | |
|---|---|---|---|---|---|---|---|---|
| N | 4712 | 493 | 98 | 22 | 15 | 27 | 109 | 102 |
| Males, n (%) | 2147 (45.6) | 211 (42.8) | 47 (48.0) | 10 (45.5) | 4 (26.7) | 14 (51.9) | 50 (45.9) | 34 (33.3) |
| Age, median [IQR] | 33 [21.00, 50.00] | 37.00 [21.00, 54.00] | 34.50 [16.75, 43.00] | 42.00 [5.25, 58.50] | 26.00 [19.00, 51.50] | 44.00 [24.50, 57.50] | 41.00 [21.00, 57.00] | 44.00 [30.00, 62.75] |
| Age group, n (%) | ||||||||
| < 1 | 15 (0.3) | 2 (0.4) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) |
| 1–4 | 396 (8.4) | 33 (6.7) | 8 (8.2) | 5 (22.7) | 2 (13.3) | 1 (3.7) | 4 (3.7) | 8 (7.8) |
| 5–14 | 400 (8.5) | 46 (9.3) | 14 (14.3) | 4 (18.2) | 0 (0.0) | 3 (11.1) | 15 (13.8) | 1 (1.0) |
| 15–24 | 730 (15.5) | 67 (13.6) | 8 (8.2) | 0 (0.0) | 5 (33.3) | 3 (11.1) | 16 (14.7) | 11 (10.8) |
| 25–44 | 1648 (35.0) | 144 (29.2) | 46 (46.9) | 3 (13.6) | 4 (26.7) | 7 (25.9) | 27 (24.8) | 32 (31.4) |
| 45–64 | 1114 (23.6) | 143 (29.0) | 20 (20.4) | 8 (36.4) | 3 (20.0) | 9 (33.3) | 31 (28.4) | 28 (27.5) |
| 65–74 | 271 (5.8) | 34 (6.9) | 2 (2.0) | 2 (9.1) | 1 (6.7) | 4 (14.8) | 14 (12.8) | 13 (12.7) |
| 75–84 | 120 (2.5) | 22 (4.5) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1 (0.9) | 6 (5.9) |
| v84+ | 18 (0.4) | 2 (0.4) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1 (0.9) | 3 (2.9) |
| Hospitalized, n (%) | 447 (9.5) | 71 (14.4) | 5 (5.1) | 1 (4.5) | 1 (6.7) | 2 (7.4) | 9 (8.3) | 14 (13.7) |
| Immunosuppressed, n (%) | 261 (5.5) | 19 (3.9) | 5 (5.1) | 0 (0.0) | 0 (0.0) | 2 (7.4) | 5 (4.6) | 11 (10.8) |
| CCI group, n (%) | ||||||||
| High | 19 (0.4) | 1 (0.2) | 0 (0.0) | 0 (0.0) | 1 (6.7) | 0 (0.0) | 0 (0.0) | 2 (2.0) |
| Mild | 282 (6.0) | 28 (5.7) | 2 (2.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 8 (7.3) | 8 (7.8) |
| None | 4411 (93.6) | 464 (94.1) | 96 (98.0) | 22 (100.0) | 14 (93.3) | 27(100.0) | 101 (92.7) | 92 (90.2) |
| Dead within 30 days, n (%) | 8 (0.2) | 1 (0.2) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1 (0.9) | 1 (1.0) |
| Travel history, n (%) | 1014 (30.1) | 69 (14.3) | 41 (43.6) | 3 (13.6) | 8 (61.5) | 7 (30.4) | 34 (31.8) | 22 (22.0) |
| Bacterial co-infection, n (%) | 283 (6.0) | 38 (7.7) | 7 (7.1) | 1 (4.5) | 8 (53.3) | 4 (14.8) | 8 (7.3) | 13 (12.7) |
| Campylobacter coli/jejuni, n (%) | 126 (44.5) | 11 (28.9) | 4 (57.1) | 0 (0.0) | 7 (87.5) | 3 (75.0) | 5 (62.5) | 7 (53.8) |
| Escherichia coli (STEC), n (%) | 62 (21.9) | 14 (36.9) | 0 (0.0) | 1 (100.0) | 0 (0.0) | 1 (25.0) | 0 (0.0) | 2 (15.4) |
| Shigella spp./EIEC, n (%) | 41 (14.5) | 1 (2.6) | 3 (42.9) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1 (12.5) | 1 (7.7) |
| Salmonella spp., n (%) | 28 (9.9) | 2 (5.3) | 0 (0.0) | 0 (0.0) | 2 (25.0) | 0 (0.0) | 1 (12.5) | 1 (7.7) |
| Yersinia enterocolitica, n (%) | 17 (6.0) | 7 (18.4) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1 (7.7) |
| Clostridioides difficile, n (%) | 27 (9.5) | 3 (7.9) | 1 (14.3) | 0 (0.0) | 1 (12.5) | 0 (0.0) | 2 (25.0) | 1 (7.7) |
*Confirmed, but species identification not possible.