Trichinellosis Tables
ShareCompartir
Number of trichinellosis cases, by source of infection and year, 2011–2015*
| Suspect Meat | 2011 | 2012 | 2013 | 2014 | 2015 | Total |
| Pork products | ||||||
| Wild boar | 2 | 1 | 10 | 0 | 0 | 13 |
| Farm—raised swine | 1 | 0 | 0 | 1 | 0 | 2 |
| U.S. commercial pork | 0 | 1 | 0 | 0 | 1 | 2 |
| Pork, foreign travel† | 1 | 1 | 1 | 0 | 1 | 4 |
| Pork, unspecified | 2 | 4 | 1 | 1 | 1 | 9 |
| Non-pork products | ||||||
| Bear | 1 | 5 | 6 | 6 | 7 | 25 |
| Hamburger | 0 | 0 | 0 | 1 | 0 | 1 |
| Pork and non-pork products | ||||||
| Pork and deer | 1 | 0 | 0 | 0 | 0 | 1 |
| Unknown | 7 | 6 | 3 | 4 | 3 | 23 |
| Total | 15 | 18 | 21 | 13 | 13 | 80 |
* Year as reported by health department
† If the case-patient reported consuming the implicated pork product internationally, the suspect meat was classified as “pork, foreign travel.”
Proportion of outbreak associated trichinellosis cases, by year, 2011–2015*
| Outbreak Associated† | 2011 Cases % |
2012 Cases % |
2013 Cases % |
2014 Cases % |
2015 Cases % |
Total Cases % |
| Yes No/Unknown |
2 13% 13 87% |
7 39% 11 61% |
12 57% 9 43% |
6 46% 7 54% |
6 46% 7 54% |
33 41% 47 59% |
| Total | 15 | 18 | 21 | 13 | 13 | 80 |
* Year as reported by health department
† Cases were classified as outbreak associated if there were two or more case-patients that were epidemiologically linked to the same meat product.
Outbreaks of trichinellosis, 2011–2015*
| Year | State† | No. of cases | Month of illness onset | Implicated meat |
| 2011 | Minnesota | 2 | March—April | Wild boar |
| 2012 | Virginia | 2 | January | Pork, unspecified |
| 2012 | Alaska | 3 | August | Unknown |
| 2012 | Minnesota, Illinois | 2 | October | Bear |
| 2013 | Illinois | 9 | February—March | Wild boar |
| 2013 | Maryland | 3 | October—November | Bear |
| 2014 | Colorado, Texas, Utah, Washington | 4 | July | Bear |
| 2014 | Alaska | 2 | October—November | Bear |
| 2015 | Texas | 3 | January—February | Bear |
| 2015§ | Colorado, Idaho | 3 | October | Bear |
* Year as reported by health department
† State of residence, which may be different than the location of exposure.
§ Two cases were residents of Colorado, and one was a resident of Idaho.
- Page last reviewed: July 5, 2017
- Page last updated: July 5, 2017
- Content source: