Volume 382, Issue 9887, Pages 138-145 (July 2013) Human infection with avian influenza A H7N9 virus: an assessment of clinical severity  Hongjie Yu, MD, Benjamin J Cowling, PhD, Luzhao Feng, MD, Eric HY Lau, PhD, Qiaohong Liao, MD, Tim K Tsang, MPhil, Zhibin Peng, MD, Peng Wu, PhD, Fengfeng Liu, MD, Vicky J Fang, MPhil, Honglong Zhang, MD, Ming Li, ME, Lingjia Zeng, MSc, Zhen Xu, MD, Zhongjie Li, MD, Huiming Luo, MD, Qun Li, MD, Zijian Feng, MD, Bin Cao, PhD, Weizhong Yang, MD, Dr Joseph T Wu, PhD, Dr Yu Wang, PhD, Prof Gabriel M Leung, MD  The Lancet  Volume 382, Issue 9887, Pages 138-145 (July 2013) DOI: 10.1016/S0140-6736(13)61207-6 Copyright © 2013 Elsevier Ltd Terms and Conditions

Figure 1 Fatality risk for patients with laboratory-confirmed infection with avian influenza A H7N9 virus who were admitted to hospital (A) 123 patients of all ages, (B) 52 patients younger than 60 years, and (C) 71 patients aged at least 60 years. As of May 28, 2013, 17 patients were still in hospital; the solid lines will converge when these cases resolve. The Lancet 2013 382, 138-145DOI: (10.1016/S0140-6736(13)61207-6) Copyright © 2013 Elsevier Ltd Terms and Conditions

Figure 2 Risks of adverse outcomes for patients with laboratory-confirmed infection with avian influenza A H7N9 virus who were admitted to hospital (A) 123 patients of all ages, (B) 52 patients younger than 60 years, and (C) 71 patients aged at least 60 years. The Lancet 2013 382, 138-145DOI: (10.1016/S0140-6736(13)61207-6) Copyright © 2013 Elsevier Ltd Terms and Conditions

Figure 3 Real-time estimates of the fatality risk for patients with laboratory-confirmed infection with avian influenza A H7N9 virus who were admitted to hospital Shading shows 95% CIs. On the basis of available information about officially announced cases to each date from April 23, to May 28, 2013. The Lancet 2013 382, 138-145DOI: (10.1016/S0140-6736(13)61207-6) Copyright © 2013 Elsevier Ltd Terms and Conditions