Systems, methods, and media for predicting presence of one or more molecules using chemical sensors

A system for predicting presence a physiological state of a subject, the system comprising:

• a sensor device comprising:
• a plurality of chemical sensors,
• wherein the plurality of chemical sensors comprise polymer-based sensor or a metal-oxide-based sensor;
• a transmitter;
• and
• a processor coupled to the plurality of chemical sensors and the transmitter, the processor programmed to:
• measure, for each of the plurality of sensors, a respective value of a plurality of values,
• wherein each of the plurality of values is a conductance value or each of the plurality of values is a capacitance value;
• and
• transmit, via the transmitter, a profile based on the plurality of values to a computing device;
• and
• a computing device comprising:
• a processor programmed to:
• receive the profile;
• and
• predict a physiological state of a subject based on the profile,
• wherein the physiological state of the subject comprises:
• whether the subject is infected with SARS-CoV-2 virus;
• or
• whether the subject is likely to experience disease caused by Clostridioides difficile.