"But, instead of chickenpox, lab testing showed that some of the patients were actually infected with an enterovirus, which can cause a rash, or the herpes simp

"But, instead of chickenpox, lab testing showed that some of the patients were actually infected with an enterovirus, which can cause a rash, or the herpes simplex virus 1, which causes cold sores." I am consistently dumbfounded by the inadequate capabilities of our healthcare system to diagnose and detect viruses. Why aren't there simple tests available on Amazon to tell you what virus (or bacteria) is making you sick? For example, things like norovirus or the flu. Even at the doctor, the diagnostics available are slow, expensive and often the wrong ones. It often feels like machinery of another well-protected industry is at work.