I am wondering whether there are certain associations between the properties of the skin and, say, the presence of a noncutaneous infection in the bloodstream (or even a change in the normal levels of various hormones and other things that we currently need to take blood to test). At the least, one would expect quantifiable changes in the skin as a result of, say, leukocytosis, which can be used as a highly noninvasive biomarker for infection. It’s a potential area to explore using data mining.