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. 2015 Apr 30:465–514. doi: 10.1007/978-94-017-9882-2_22

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© Springer Science+Business Media Dordrecht and People's Medical Publishing House 2015

This article is made available via the PMC Open Access Subset for unrestricted research re-use and secondary analysis in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the World Health Organization (WHO) declaration of COVID-19 as a global pandemic.

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Fig. 22.28 — Influenza A (H1N1) complicated by pneumonia. (a, b) X-ray demonstrates multiple blurry shadows in both lungs and enlarged blurry hilar shadows of both lungs. (c–j) The autopsy demonstrates widened pulmonary interstitium, fibrosis of interalveolar space, infiltration of inflammatory cells that are mostly neutrophils, and exudations of mononuclear cells, lymphocytes, and macrophage (H&E ×10). (k, l) There are myocardial interstitial edema and minor vascular dilation (H&E ×40)

Fig. 22.28 — Influenza A (H1N1) complicated by pneumonia. (a, b) X-ray demonstrates multiple blurry shadows in both lungs and enlarged blurry hilar shadows of both lungs. (c–j) The autopsy demonstrates widened pulmonary interstitium, fibrosis of interalveolar space, infiltration of inflammatory cells that are mostly neutrophils, and exudations of mononuclear cells, lymphocytes, and macrophage (H&E ×10). (k, l) There are myocardial interstitial edema and minor vascular dilation (H&E ×40)