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Message: [QUOTE="upstater, post: 3550269, member: 153"] I didn't say it will result in extinction. I really meant to say it won't come before a vaccine. If the serology tests are correct, a very low % of the population has it. Either because it doesn't spread as easily as we once assumed or because social distancing has been very effective. The very high levels required for her immunity wouldn't happen for a very long time. My mistake in the earlier post is in not acknowledging that herd immunity is also achieved through vaccination. Sweden has had to totally rethink their approach because they are not going to get to herd immunity as fast as they had assumed. [/QUOTE]