University-Based Chagas Testing in Salta Province, Argentina

The goal of this observational study is to improve access to diagnosis and treatment for chronic Trypanosoma cruzi infection among university students of all ages and genders at the National University of Salta (UNSa), Argentina. The main questions it aims to answer are: * What is the seroprevalence and geographic distribution of T. cruzi infection in UNSa students? * Can voluntary point-of-care tests performed at university serve as an effective opportunity for timely diagnosis and linkage to care for Chagas disease? Participants will: 1. Be offered a RDTs (WL Check Chagas, Wiener Lab) during their regular activities in the university. 2. If RDT is positive, be referred to the health system for confirmatory testing and treatment. 3. Receive follow-up support by trained staff via phone. A subgroup of RDT-negative students will have serum samples preserved and analyzed later via ELISA to verify RDT accuracy.

Inclusion criteria: * Member of the university community (e.g., student, faculty, administrative staff, or other personnel). * Aged 18 years or older. * Of any sex or gender. * Able and willing to provide informed consent. Exclusion Criteria: \- Prior confirmed diagnosis of Trypanosoma cruzi infection.