Research Article
Evaluating the Timeliness of Enteric Disease Surveillance in British Columbia, Canada, 2012-13
Table 2
Comparison of time intervals between steps in the surveillance of enteric diseases between BC (2012-13) and other regions1.
| | Time interval | Salmonella median in days | STEC median in days | Shigella median in days | Listeria median in days | BC | Int’l | BC | Int’l | BC | Int’l | BC | Int’l |
| Laboratory surveillance | 1: symptom onset to sample collection | 6 | 4 [3, 4] | 4 | 3 [3] | 7 | 2 [3] | 3 | NA | 2: sample collection to sample receipt at PHL | 5 | 6 [8] | 4 | 5 [8] | 4 | NA | 3 | 6 [8] | 3: sample receipt at PHL to PHL confirmation (incl. serotype or species) | 3 | 5 [4] 4 [8] 6 [7] | 6 | 5 [8] | 1 | NA | 6 | NA | A2: symptom onset to start of PFGE | 21 | 18 [3] | 19 | 15 [3] | 22 | 21 [3] | NA | NA | A3: sample collection to report of PT results to provincial epidemiologists | 28 | 25 [4] | NA | NA | NA | NA | NA | NA | A4: sample receipt at PHL to report of PFGE result to provincial epidemiologists | 23 | 5 [8] | 17 | 4 [8] | 33 | NA | NA | 4 [8] |
| Epidemiological surveillance | 9: sample collection to local/regional health authority notification | 4 | 6 [4] 6 [6] | 5 | 4 [6] | 4 | 6 [6] | 3 | 5 [6] | B1: symptom onset to completed interview | 14 | 14 [3] | 12 | 12 [3] | 14 | 14 [3] | 13 | NA | B2: symptom onset to local/regional health authority notification | 11 | 9 [3] | 10 | 7 [3] 11 [5] | 13 | 8 [3] | 7 | NA | B3: local/regional health authority notification to first attempt to contact | 1 | 2 [8] | 1 | 2 [8] | NA | NA | 42 | 2 [8] |
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Number in brackets refer to the associated references. Only 8 cases.
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