Volume 31, Number 10—October 2025
CME ACTIVITY - Research
Reptile Exposure in Human Salmonellosis Cases and Salmonella Serotypes Isolated from Reptiles, Ontario, Canada, 2015–2022
Katherine Paphitis
, Alexandra Reid, Hannah R. Golightly, Janica A. Adams, Antoine Corbeil, Anna Majury, Allana Murphy, and Heather McClinchey
, Alexandra Reid, Hannah R. Golightly, Janica A. Adams, Antoine Corbeil, Anna Majury, Allana Murphy, and Heather McClinchey
Table 1
Case-patient demographics for reported confirmed and probable sporadic locally acquired human cases of salmonellosis in Ontario, Canada, 2015–2022*
| Characteristic | Reptile contact |
Total cases | p value (χ2) | |
|---|---|---|---|---|
| Yes | No | |||
| Sex†‡ | 0.37 (0.82) | |||
| M | 234 (6.0) | 3,637 (94.0) | 3,871 (100.0) | |
| F | 279 (6.5) | 3,992 (93.5) | 4,271 (100.0) | |
| All |
513 (6.3) |
7,629 (93.7) |
8,142 (100.0) |
|
| Age group, yठ| <0.001 (46.1) | |||
| <1 | 46 (9.0) | 278 (3.6) | 324 (4.0) | |
| 1–4 | 42 (8.2) | 815 (10.7) | 857 (10.5) | |
| 5–9 | 62 (12.1) | 553 (7.2) | 615 (7.6) | |
| 10–19 | 84 (16.4) | 693 (9.1) | 777 (9.5) | |
| 20–29 | 109 (21.2) | 939 (12.3) | 1,048 (12.9) | |
| 30–39 | 54 (10.5) | 699 (9.2) | 753 (9.2) | |
| 40–49 | 52 (10.1) | 696 (9.1) | 748 (9.2) | |
| 50–59 | 40 (7.8) | 965 (12.6) | 1,005 (12.3) | |
| 60–69 | 13 (2.5) | 853 (11.2) | 866 (10.6) | |
| >70 | 11 (2.2) | 1,142 (15.0) | 1,153 (14.2) | |
| All |
513 (100.0) |
7,633 (100.0) |
8,146 (100.0) |
|
| Year | ||||
| 2015 | 99 (8.1) | 1,126 (91.9) | 1,225 | |
| 2016 | 88 (6.2) | 1,328 (93.8) | 1,416 | |
| 2017 | 80 (6.4) | 1,176 (93.6) | 1,256 | |
| 2018 | 69 (5.3) | 1,236 (94.7) | 1,305 | |
| 2019 | 71 (6.4) | 1,035 (93.6) | 1,106 | |
| 2020 | 42 (6.5) | 609 (93.5) | 651 | |
| 2021 | 37 (6.6) | 527 (93.4) | 564 | |
| 2022 | 27 (4.3) | 598 (95.7) | 625 | |
| All | 513 (6.3) | 7,635 (93.7) | 8,148 | |
*Values are no. or no. (%) except as indicated. †Sex is reported in the provincial electronic surveillance system as male, female, transgender, or other. Analyses involving sex were restricted to data for case-patients with sex reported as male or female due to low counts for other variables. No case-patients with domestic acquisition of infection and reported reptile exposure reported sex other than male or female. ‡Sporadic cases only. §Of 513 case-patients with no travel history who reported reptile exposure.
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