I haven't heard of this axis before. Can you point me to some further reading, thanks. I'm not in any high-risk categories for asymptomatic chronic infections

I haven't heard of this axis before. Can you point me to some further reading, thanks. I'm not in any high-risk categories for asymptomatic chronic infections, so I'm not sure this is a concern. There remains a question: should health, asymptomatic, fit / active, non-smoking, non-drinking, individuals, undergo a barrage of tests at Medicare's (public health insurer in Australia) expense? Also, I studied nutritional medicine in a formal setting for four years, so I consider myself sufficiently qualified to make that call. Otherwise, you're probably right, it makes sense, in general, for people to have tests for nutrient deficiencies, especially if there are comorbidities.