Thursday, May 14, 2020
Getting to herd immunity without a vaccine isn't as simple as the idea itself. A number of variables can affect when herd immunity is reached--and what it costs to get there--and they vary depending on the disease. How infectious is the disease? How deadly is it? And how long do people stay immune once they've gotten it? Adjusting any of these variables can drastically change the outcome of this equation. You can probably sense where this is heading ...
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