Volume 3, Number 3—September 1997
Dispatch
Using Laboratory-Based Surveillance Data for Prevention: An Algorithm for Detecting Salmonella Outbreaks
Table 1
Number of flags produced for Salmonella serotype Enteritidis, 1993
| State | All Isolates |
Three or more isolates |
Five or more isolates |
||||||
|---|---|---|---|---|---|---|---|---|---|
| Mean 5 wks | Mean 15 wks | Median 5 wks | Mean 5 wks | Mean 15 wks | Median 5 wks | Mean 5 wks | Mean 15 wks | Median 5 wks | |
| Alaska | 3 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 |
| Arizona | 12 | 13 | 18 | 4 | 4 | 4 | 1 | 1 | 1 |
| Arkansas | 3 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 |
| Colorado | 21 | 23 | 35 | 13 | 13 | 15 | 1 | 1 | 1 |
| Connecticut | 12 | 13 | 31 | 11 | 12 | 26 | 9 | 10 | 21 |
| Delaware | 7 | 8 | 12 | 1 | 1 | 2 | 0 | 0 | 0 |
| District of Columbia | 4 | 4 | 8 | 1 | 1 | 1 | 0 | 0 | 0 |
| Florida | 15 | 15 | 15 | 1 | 1 | 1 | 1 | 1 | 1 |
| Georgia | 2 | 2 | 2 | 2 | 2 | 2 | 0 | 0 | 0 |
| Hawaii | 7 | 7 | 7 | 0 | 0 | 0 | 0 | 0 | 0 |
| Idaho | 12 | 12 | 14 | 0 | 0 | 0 | 0 | 0 | 0 |
| Illinois | 12 | 12 | 23 | 12 | 12 | 23 | 12 | 12 | 23 |
| Indiana | 22 | 22 | 33 | 14 | 14 | 17 | 7 | 7 | 8 |
| Iowa | 10 | 11 | 16 | 5 | 5 | 5 | 1 | 1 | 1 |
| Kansas | 12 | 12 | 16 | 1 | 1 | 1 | 1 | 1 | 1 |
| Kentucky | 10 | 10 | 13 | 0 | 0 | 0 | 0 | 0 | 0 |
| Louisiana | 16 | 17 | 18 | 7 | 7 | 7 | 0 | 0 | 0 |
| Maryland | 8 | 9 | 25 | 8 | 9 | 25 | 4 | 5 | 20 |
| Massachusetts | 5 | 5 | 9 | 5 | 5 | 9 | 5 | 5 | 9 |
| Michigan | 11 | 11 | 34 | 9 | 9 | 22 | 7 | 7 | 9 |
| Minnesota | 20 | 24 | 31 | 17 | 19 | 20 | 6 | 6 | 6 |
| Missouri | 17 | 19 | 30 | 5 | 5 | 6 | 1 | 1 | 1 |
| Nevada | 6 | 6 | 6 | 2 | 2 | 2 | 1 | 1 | 1 |
| New Hampshire | 19 | 22 | 23 | 3 | 3 | 3 | 0 | 0 | 0 |
| New Jersey | 7 | 7 | 25 | 7 | 7 | 25 | 7 | 7 | 24 |
| New Mexico | 14 | 14 | 17 | 7 | 7 | 7 | 4 | 4 | 4 |
| New York | 11 | 12 | 28 | 10 | 11 | 26 | 7 | 7 | 18 |
| North Dakota | 7 | 7 | 8 | 0 | 0 | 0 | 0 | 0 | 0 |
| Ohio | 11 | 13 | 25 | 10 | 12 | 19 | 7 | 8 | 11 |
| Oklahoma | 3 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 |
| Oregon | 16 | 17 | 21 | 4 | 4 | 4 | 0 | 0 | 0 |
| Pennsylvania | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Rhode Island | 18 | 18 | 22 | 7 | 7 | 8 | 2 | 2 | 2 |
| South Carolina | 10 | 10 | 13 | 6 | 6 | 6 | 1 | 1 | 1 |
| South Dakota | 15 | 15 | 18 | 1 | 1 | 1 | 0 | 0 | 0 |
| Tennessee | 4 | 4 | 14 | 3 | 3 | 6 | 0 | 0 | 0 |
| Texas | 15 | 16 | 24 | 9 | 9 | 10 | 5 | 5 | 5 |
| Utah | 13 | 14 | 16 | 2 | 2 | 2 | 0 | 0 | 0 |
| Vermont | 28 | 29 | 30 | 15 | 15 | 16 | 9 | 9 | 10 |
| Virginia | 12 | 13 | 37 | 12 | 13 | 32 | 8 | 9 | 16 |
| West Virginia | 3 | 3 | 5 | 1 | 1 | 1 | 0 | 0 | 0 |
| Wisconsin |
14 |
15 |
31 |
14 |
14 |
25 |
13 |
13 |
15 |
| Total | 468 | 494 | 763 | 230 | 238 | 380 | 121 | 125 | 210 |
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