10
Participants
Start Date
December 4, 2019
Primary Completion Date
January 31, 2022
Study Completion Date
September 30, 2025
Vivotif Typhoid Oral Vaccine
One capsule is swallowed on alternate days, e.g. days 15, 17, 19, and 21, for a total of 4 capsules.
Aspirin (Positive Control)
Three tablets (325 mg aspirin in each tablet or 975 mg total) are swallowed on days 2 and 3.
USDA, ARS, Western Human Nutrition Research Center, Davis
USDA, Western Human Nutrition Research Center
FED