Volume 19, Number 1—January 2013
CME ACTIVITY - Synopsis
Listeriosis Outbreaks and Associated Food Vehicles, United States, 1998–2008
Emily J. Cartwright, Kelly A. Jackson, Shacara D. Johnson, Lewis M. Graves, Benjamin J. Silk
, and Barbara E. Mahon
, and Barbara E. Mahon
Table 2
Characteristics of 24 listeriosis outbreaks by implicated food categories, Foodborne Disease Outbreak Surveillance System, United States, 1998–2008*
| Food category | No. outbreaks | Total no. cases† | No. (%) hospitalized | No. deaths (CFR, %) | Age group, y, no. (%)‡ |
No. (%) female‡ | ||
|---|---|---|---|---|---|---|---|---|
| <1 | 1–49 | >50 | ||||||
| Deli meats | 6 | 132 | 49 (37) | 15 (11) | NA | NA | NA | 40 (45) |
| Frankfurters | 3 | 116 | 101 (87) | 14 (12) | 0 | 52 (46) | 60 (54) | 57 (49) |
| Other meats | 2 | 14 | 3 (21) | 0 | NA | NA | NA | 2 (67) |
| Mexican-style cheese | 4 | 45 | 41 (91) | 1 (2) | 8 (18) | 32 (73) | 4 (9) | 37 (84) |
| Other dairy products | 2 | 8 | 7 (88) | 4 (50) | 1 (13) | 1 (13) | 6 (75) | 4 (50) |
| Salad/other | 3 | 27 | 7 (26) | 3 (11) | 0 | 7 (26) | 20 (74) | 16 (59) |
| Unknown | 4 | 17 | 7 (41) | 1 (6) | 0 | 1 (13) | 7 (88) | 4 (50) |
| Overall | 24 | 359 | 215 (60) | 38 (11) | 10 (4) | 120 (50) | 108 (45) | 160 (54) |
*CFR, case-fatality rate; NA, not available.
†Includes laboratory-confirmed and epidemiologically linked cases.
‡Percentages were calculated on the basis of available information on age distribution (17 outbreaks) and sex (19 outbreaks) for 238 and 296 patients, respectively.
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Page updated: December 21, 2012
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