FIG. 2.

(A) Kiran app login screen, activity screen, and participant selection screen. (B) Field user can use these three screens to enter participant answers to questions about demographics and social history. (C) Each participant is identified by a unique barcode, which is scannable by the tablet and done before phlebotomy. Participant can opt out of phlebotomy if they are not interested or not able to have their blood drawn. When eligible, patient can receive HBV vaccination. (D) Web application dashboard. From field and central headquarters, user has the ability to view patient data, look at all microbiology reports, and generate new bar codes for future participants.