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Clin Vaccine Immunol. 2010 May;17(5):879-81. doi: 10.1128/CVI.00486-09. Epub 2010 Mar 10.

Pilot study of whole-blood gamma interferon response to the Vibrio cholerae toxin B subunit and resistance to enterotoxigenic Escherichia coli-associated diarrhea.

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  • 1Center for Infectious Diseases, School of Public Health, University of Texas at Houston, Houston, Texas, USA.

Abstract

Enterotoxigenic Escherichia coli (ETEC), which produces heat-labile toxin (LT), is a common cause of travelers' diarrhea (TD). The B subunit of ETEC LT is immunologically related to the B subunit of Vibrio cholerae toxin (CT). In this pilot study we evaluated the whole-blood gamma interferon response to CT B in 17 U.S. adults traveling to Mexico. Only one of nine subjects who demonstrated a cellular immune response as determined by whole-blood gamma interferon production to CT B on arrival to Mexico developed diarrhea, whereas five of eight without a cellular response developed diarrhea. Markers of the cellular immune response to ETEC LT could help in identifying individuals immune to ETEC LT, and these markers deserve additional study.

PMID:
20219880
[PubMed - indexed for MEDLINE]
PMCID:
PMC2863377
Free PMC Article
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