Participants needed for an ETEC challenge study at CIR

The Johns Hopkins Center for Immunization Research is looking for healthy volunteers to participate in an inpatient ETEC challenge study. If you are between the ages of 18 and 50, you may be eligible to participate. The study is 6 months long and requires the following:

  • 1-2 screening visits
  • 1 inpatient stay lasting 10 days
  • 1 follow-up visit
  • 1 follow-up phone call

Eligible people will be compensated up to $3,860 for participation. For more information, please call 410-955-SAVE (7283) or visit the CIR website


To see if you qualify for in-person screening, click here to complete the pre-screening survey.

Principal Investigator: Kawsar Talaat, MD