Inclusion Criteria:  Ages 18 and above Subjects must be able to follow directions and give informed consent on their own  Exclusion Criteria:  • Individuals who are deemed unable to understand the procedures, risks and benefits of the study, ie. Informed consent will be excluded.  Females who are pregnant will also be excluded to minimize the risk to such individuals (and fetus). Individuals who are therapeutically immuno-compromised will also be excluded to decrease statistical variability and to minimize potential of confounders. Candidates for inclusion into the study will not include individuals as defined in 45 CFR 46 Subparts B, C and D, nor from any other population which may be considered vulnerable.