>>In the meantime, the principle of herd immunity is well understood whether you're a physician or not.
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>Agreed.
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>>Depends what "practice" means. Epidemiologist physicians are still practicing even though they never dirty their hands on a patient. It seems that all "professionals" may not be the same.
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>I've worked with some Epidemiologists when I worked in WIC and even with the CDC. You'll have to excuse my generalization, but I put their usefulness just slightly above attorneys.

I know I am repeating myself but am pretty sure the two of you would like each other if you met in person. That is coming from someone who has met John in person and knows you some from here. You are not one to hold things back. His personality is quite different from yours but I would bet real money that you would get along. You two have been bickering forever. As the song puts it, give peace a chance.