A Pilot Study Assessing Intestinal Microbiota Diversification and Changes After Travel to South(East) Asia From the US

"The screening criteria review is an 8 item instrument collecting information during screening about overall health, including self-reported chronic intestinal conditions, immunocompromising conditions, the use of certain medication types (immunosuppressives and antibiotics), and pregnancy status. The instrument will also collect dates of planned travel to South(east) as well as preferred dates for study visits and reminder contacts.~This instrument will be administered verbally by the study team and completed no more than 4 weeks prior to travel departure from the United States."

"The pre-travel questionnaire is a 29 item instrument collecting information about baseline characteristics, dietary habits, travel plans, and health history.~This questionnaire will be administered verbally by the study team and completed 1 week prior to travel departure from the United States."

"The pre-travel stool specimen collection will occur 1 week prior to travel departure from the United States.~The processing and analyses of this stool specimen will be performed by the Centers for Disease Control and Prevention."

"The short-term post-travel questionnaire is a 19 item instrument collecting information about dates and locations of travel, food and beverages consumed while traveling, and illnesses during or following traveling.~This questionnaire will be administered verbally by the study team and completed 2 weeks after returning to the United States from travel."

"The short-term post-travel stool specimen collection will occur 2 weeks after returning to the United States from travel.~The processing and analyses of this stool specimen will be performed by the Centers for Disease Control and Prevention."

"The long-term post-travel questionnaire is a 16 item instrument collecting information about illnesses since last study visit, dietary habits since last study visit, and any traveling since the last visit.~This questionnaire will be administered verbally by the study team and completed 14 weeks after returning to the United States from travel."

"The short-term post-travel stool specimen collection will occur 14 weeks after returning to the United States from travel.~The processing and analyses of this stool specimen will be performed by the Centers for Disease Control and Prevention."