Table 1.
Human C. jejuni isolates indistinguishable by PFGE from clone SA identified in the PulseNet National Campylobacter database at the CDC through 2010
| Case | No. of isolates | State | Yr | Isolation source | Exposure |
|---|---|---|---|---|---|
| Outbreak 1 | 1 | VT | 2003 | Unknown | Raw milk |
| Outbreak 2 | 4 | SC | 2007 | Stool | Raw milk |
| Outbreak 3 | 16a | PA | 2008 | Unknown | Raw milk |
| Outbreak 4 | 4 | RI | 2008 | Unknown | Chicken |
| Outbreak 5 | 32 | WI | 2009 | Stool | Raw milk |
| Outbreak 6 | 2 | MA | 2010 | Stool/blood | Raw milk |
| Outbreak 7 | 7 | MI | 2010 | Stool | Raw milk |
| Outbreak 8 | 1 | MT | 2010 | Unknown | Well water |
| Outbreak 9 | 2 | VT | 2010 | Stool | Raw milk |
| Sporadicb | 56 | Multiple | 2004–2010 | Stool | Unknown |
a
Includes two raw milk isolates from the dairy implicated in the outbreak.
b
Sporadic cases were from multiple states (Arkansas, Colorado, Kansas, Massachusetts, Utah, Sout Dakota, Vermont, Wisconsin, and Wyoming); the isolates were mainly from stool samples (except a few from blood or unknown origin), and sources of exposure were unknown for most cases (raw milk was implicated in one case).