It's a terrible argument regardless. Just because you know a couple of people who've smoked their whole lives it doesn't make smoking safe 
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Replying to @TheMelt @maureenchuck1
That's a weird word salad. Herd immunity doesn't describe a ~literal~ herd of cows, it's a technical term for what could be called community immunity that's largely a mathematical function of how many people are protected against disease
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Replying to @TheMelt @maureenchuck1
Nope, it's a mathematical function - I explain here:https://medium.com/@gidmk/herd-immunity-is-pretty-cool-adbc52630f9f …
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Replying to @TheMelt @maureenchuck1
Lol. How about this - do you know what an R0 is?
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Replying to @TheMelt @maureenchuck1
Lol it's not a theory, I suspect you may not understand what that word means
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Here's the Wikipedia article on an R0, or basic reproduction number. Honestly, once you understand this herd immunity is an easy jump - just reduce R0 below 1 and voila https://en.wikipedia.org/wiki/Basic_reproduction_number …
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When R0>1, the disease will spread. If R0<1, herd immunity kicks in. With a sufficiently low R0, you can almost entirely prevent the spread of a disease Funnily enough, the maths has nothing to do with vaccination at all! It's just maths
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Replying to @TheMelt @maureenchuck1
There are hundreds of examples in the literature, you're more than welcome to read the ones I linked you to
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End of conversation
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