Drawing of the 1918 Influenza: Trachea showing earliest stage of reaction in influenza. Epithelium intact, but basement [?] slightly swollen as [?], with congestion and some small cells influtration of sub[?]. Hyaline deposits over epithelium

You can use this work for any purpose, including commercial uses, without restriction under copyright law. You should also provide attribution to the original work, source and licence.

Creative Commons Attribution (CC BY 4.0) terms and conditions https://creativecommons.org/licenses/by/4.0

Credit: Drawing of the 1918 Influenza: Trachea showing earliest stage of reaction in influenza. Epithelium intact, but basement [?] slightly swollen as [?], with congestion and some small cells influtration of sub[?]. Hyaline deposits over epithelium. Wellcome Collection. Attribution 4.0 International (CC BY 4.0)