It is better to be safe than sorry” is an old expression that comes to mind every time I hear the terms coronavirus and herd immunity in the same sentence. It is like trying to win in a casino dice game the hard way.

I received my smallpox “shot” back in the 1930s (grandfather was a doctor) that was really not a shot but rather consisted of 30 or so needle point pricks of vaccine that left a small dime-size circular scar on my upper left arm for years. Smallpox has been eradicated, but today’s researchers who work on the variola virus are still being protected by immunization.

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