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. 2022 Jul 8;76(3):e350–e359. doi: 10.1093/cid/ciac438

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© The Author(s) 2022. Published by Oxford University Press on behalf of Infectious Diseases Society of America.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs licence (https://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reproduction and distribution of the work, in any medium, provided the original work is not altered or transformed in any way, and that the work is properly cited. For commercial re-use, please contact journals.permissions@oup.com

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Figure 1. — Estimated percentage immunologically exposed on 1 December 2021, for each US county and state. Background coloring indicates the state-specific distribution of immunity as a function of infections and vaccinations. Black dots represent counties in a state; red dots, the state average. Orange diamonds represent the state population–weighted national averages of the percentage ever infected and vaccinated (this does not represent the national average of immunity because the calculation for immunity is state specific).