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. 2018 Sep 5;219(2):197–205. doi: 10.1093/infdis/jiy515

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© The Author(s) 2018. Published by Oxford University Press for the Infectious Diseases Society of America.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs licence (http://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 3. — Risk for subsequent virus-positive and virus-negative acute respiratory infections (ARIs) after preceding viral infections. Hazard ratios and 95% confidence intervals determined using Cox regression analysis are shown for subsequent virus (+) and virus (−) ARIs after preceding adenovirus (AdV), influenza virus (IFV)-A, parainfluenza virus (PIV)-4, and rhinovirus (RhV)-C infections compared with matched controls. *, Not calculated because of the limited number of events. A log scale was used for the hazard ratios.