I like this episode:

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Comment: He did not answer some of my questions but it is a good illustration of the scope of different interpretations of viruses and human health, in general. At best, I can think of it this way: 500 years ago, people had no idea of the true nature of electricity but it did not mean that electricity did not exist. Besides, there are many “viral” illnesses, attributed to many “viruses” and having distinct symptoms. Not only seasonal colds. Big topic, not as simple as dr. Kaufman would like us to believe. I like his psychological analysis, though.