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image of Human Strongyloidiasis in Hawaii: A Retrospective Review of Enzyme-Linked Immunosorbent Assay Serodiagnostic Testing
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645
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Abstract

Human strongyloidiasis is widely prevalent in tropical and subtropical regions worldwide but is not endemic in Hawaii. Subclinical, chronic infections may be lifelong; immunosuppressive therapy, particularly with glucocorticoids, may lead to serious or fatal disseminated disease, which is preventable. We performed a retrospective analysis of patients tested for IgG antibody in an academic medical center in Honolulu, Hawaii, from 2005 to 2012. Of the 475 patients tested, 78 (16%) were seropositive. The largest proportion of seropositive cases was found among Micronesians (30%), Polynesians (26%), Filipinos (13%), and Southeast Asians (11%). Among the seropositive patients, the most likely reason for clinicians to order testing was blood eosinophilia. Stool parasite examination results were available for 58% of seropositive patients of which 11% were positive for larvae. Antihelminthic therapy, usually ivermectin, was ordered for 70% of patients. After treatment, blood eosinophilia and serology results were reassessed for 79% and 24% of patients, respectively; both tests tended to show improvement. Travelers and immigrants from -endemic areas, including Micronesia and Polynesia, should have serodiagnostic testing for latent strongyloidiasis, and if positive, treated empirically with ivermectin, particularly when corticosteroids or other immunosuppressive therapy are anticipated.

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/content/journals/10.4269/ajtmh.18-0157
2018-06-25
2018-07-16
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http://instance.metastore.ingenta.com/content/journals/10.4269/ajtmh.18-0157
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  • Published online : 25 Jun 2018
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