Table 3.
Epidemiologic information1 and typing results for 18 stool specimens (with typing data for both loci CYC21 and CYC22) from 18 patients associated with case clusters or outbreaks.
| Collection location2 and year | Epidemiologic linkage to a cluster or outbreak (vehicle and source, if both were identified)3 | Specimen ID | International travel during 2-week period before symptom onset4 | Sequence type |
|
|---|---|---|---|---|---|
| Locus CYC21 | Locus CYC22 | ||||
| Rhode Island 1997 | Multistate outbreak (raspberries from Guatemala) [6] | HCRI001_97 | No | C2 | C1 |
| New York 2001 | Florida outbreak [2] | HCNY016_01 | No | C2 | C1 |
| Maine 2014 | Maine temporospatial cluster | HCME548_14 | No | C2 | C2 |
| HCME550_14 | No | C2 | C2 | ||
| HCME552_14 | No | C2 | C2 | ||
| Michigan 2014 | Michigan conference-associated cluster [2] | HCMI029_14 | No | C16 | C1 |
| HCMI030_14 | Unknown | C3 | C2 | ||
| HCMI039_14 | Unknown | C16 | C3mixed | ||
| Pennsylvania 2014 | HCPA556_14 | No | C16 | C3mixed | |
| South Carolina 2014 | South Carolina temporospatial cluster [2] | HCSC052_14 | No | C2 | C3mixed |
| HCSC053_14 | No | C2 | C3mixed | ||
| Texas 2014 | Texas restaurant-associated cluster 2014-A (cilantro from Mexico) [2] | HCTX543_14 | No | C2 | C4 |
| Texas restaurant-associated cluster 2014-B | HCTX592_14 | No | C3 | C4 | |
| Texas 2015 | Texas business-associated cluster | HCTX204_15 | Cozumel, Mexico | C3 | C3mixed |
| HCTX205_15 | No | C3 | C3mixed | ||
| HCTX538_15 | No | C3 | C3mixed | ||
| Texas 2016 | Texas restaurant-associated cluster [2] | HCTX471_16 | No | C2 | C1 |
| HCTX474_16 | No | C2 | C1 | ||
The epidemiologic information provided in the table reflects what was submitted to CDC as part of surveillance or outbreak-related activities for cyclosporiasis.
The collection location was not necessarily the same as the place of exposure to C. cayetanensis.
The terminology temporospatial cluster is used here for cases that were not linked to a particular establishment or event but were temporally and geographically clustered.
Because US patients with a history of international travel may have spent part of the 2-week period before illness onset in the United States, the specified travel destination is not necessarily where they became infected.