DEVICE AND SYSTEM TO RECONSTRUCT TRAVEL HISTORY OF AN INDIVIDUAL

摘要

Methods and systems for determining travel history can be based on noninvasive analysis of stable isotope ratios in the body of an individual. A method for reconstructing a travel history for an individual can include collecting a sample of exhaled breath from the individual and analyzing the sample to obtain a breath isotope ratio. The breath isotope ratio can be transformed to a body water isotope ratio and compared to a map model correlating input isotope ratios to geographic locations so as to determine a travel origin for the individual.