Volume 21, Number 10—October 2015
Dispatch
Local and International Implications of Schistosomiasis Acquired in Corsica, France
Table
Characteristics for 11 international travelers with urinary schistosomiasis diagnosed in 2014 and acquired in Corsica, France*
Patient age, y/sex | Reporting site | Travel to Corsica |
First clinic visit, 2014 | Eosinophils, cells/μL | Serologic test result |
Eggs in urine | Infection status† | ||
---|---|---|---|---|---|---|---|---|---|
2014 | Before 2014 | First-line (antibody titer, IU) | Second-line | ||||||
7/M | Berlin, Germany | None | 2013 | Jun 5 | 1,415 | Pos (26.0)‡ | ELISA and IHA Neg§ | Neg | Probable |
52/M | Berlin | None | 2012 | Jul 18 | 192 | Borderline (11.0)‡ | ELISA and IHA Neg§ | Neg | Suspected |
29/F | Ghent, Belgium | None | 2013 | Aug 29 | 560 | Pos (1.1)¶ | IHA Neg# | Neg | Probable |
17/F | Hamburg, Germany | July–August | None | Sep 8 | 45 | Weak Pos** | IIFT Neg | NT | Probable |
11/M | Munich, Germany | None | 2013 | Sep 22 | 770 | Pos†† | IIFT Pos | Pos | Confirmed |
35/F‡‡ | Berlin | July | 2011–2013 | Sep 23 | 202 | Pos (17.0)‡ | ELISA and IHA Neg§ | Neg | Probable |
35/M‡‡ | Berlin | July-August | 2012–2013 | Oct 7 | 359 | Pos (29.0)‡ | ELISA and IHA Neg§ | Neg | Probable |
11/M‡‡ | Berlin | July–August | 2012–2013 | Oct 7 | 152 | Borderline (9.0)‡ | ELISA and IHA Neg§ | Neg | Suspected |
41/F | Munich | May–June | 2007, 2009–2011 | Oct 10 | 344 | Pos†† | IIFT Pos | Neg | Confirmed |
45/F | Montreal, Quebec, Canada | July | None | Dec 5 | 0 | Pos (0.37)§§ | ND | Neg | Suspected |
6/F | Berlin | None | 2011–2012 | Dec 22 | 950 | Pos (32.0)‡ | ELISA and IHA Neg§ | Neg | Probable |
*All patients were detected through a search of the GeoSentinel Surveillance Network (5). The patient from Montreal had microscopic hematuria; none of the other patients showed signs or symptoms of disease, and their infections were found during screening. IHA, indirect hemagglutination assay; IIFT, indirect immunofluorescence test; Neg, negative; ND, not done; NT, not tested; Pos, positive.
†Suspected, borderline result from 1 serologic testing method; probable, positive result from 1 serologic testing method; confirmed, positive result from 2 serologic testing methods and/or parasite eggs in urine.
‡As determined by using a Schistosoma mansoni IgG ELISA (DRG Diagnostics, Marburg, Germany); negative, <9; borderline, 9–11; positive, >11.
§As determined by using an S. mansoni adult or egg IgG ELISA; IHA, Cellognost Schistosomiasis H (Siemens, Erlangen, Germany).
¶As determined by using an in-house S. mansoni IgG ELISA using egg antigen extract mixed with S. mansoni adult worm extract imported from Egypt (positive at an optical density >1).
#As determined by using an in-house IHA with an S. mansoni adult worm extract (Fumouze SA, Levallois-Perret, France), with titration and cut-off set at 1/80 (positive at >1/160).
**As determined by using an in-house S. mansoni cercariae IgG ELISA.
††As determined by using an in-house S. mansoni IgG ELISA.
‡‡Familial cluster.
§§As determined by using an in-house S. mansoni–S. haematobium combined IgG ELISA (negative, <0.3; borderline, 0.3–0.35; positive, >0.35).
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1Additional members of the GeoSentinel Surveillance Network who also contributed data are listed at the end of this article.