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ETEC Challenge Study (ETVAX CIR 357)

Inpatient study enrolling adults 18-50 years old.

This study is about finding a vaccine to prevent children and travelers from getting sick from ETEC bacteria.  We want to learn about how many people will get diarrhea after this dose of wild type enterotoxigenic E. coli  (ETEC). It will then be used in a vaccine study.

The study is:

  • 6 months long

  • enrolling people 18-50 years old

  • includes 1-2 screening visits

  • one 10-day inpatient stay

  • 1 follow up visit

  • 1 follow up phone call

Screening Dates

Wednesday, January 3, 2023

Thursday, January 4, 2023

Friday, January 5, 2023

*Appointments available noon-2pm each day!

Screening Location

CIR Bayview

301 Building 4th floor

301 Mason Lord Drive

Baltimore, MD 21224



Study Period

6 months


up to $3860