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. 2023 Sep 9;4(5):e13032. doi: 10.1002/emp2.13032

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© 2023 The Authors. Journal of the American College of Emergency Physicians Open published by Wiley Periodicals LLC on behalf of American College of Emergency Physicians.

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

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(A)–(B) Koplik spots. The presence of small white or grey‐colored “Koplik” spots, found on an erythematous base on the buccal mucosa, can be pathognomonic for a measles infection. Images used with permission from VisualDx.