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. 2018 May 10;51(5):1800369.
doi: 10.1183/13993003.00369-2018. Print 2018 May.

Ambient ozone and influenza transmissibility in Hong Kong

Affiliations

Ambient ozone and influenza transmissibility in Hong Kong

Sheikh Taslim Ali et al. Eur Respir J. .
No abstract available

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Conflict of interest statement

Conflict of interest: B.J. Cowling has received research funding from Sanofi Pasteur for a study of influenza vaccine effectiveness.

Figures

Figure 1
Figure 1
(a-e) weekly activity of influenza (ILI+ proxy) by virus type/subtype (black lines) along with the 44 predefined epidemics (gray bars), and the weekly smoothed average of ozone concentrations in Hong Kong from 1998 through 2013. (f) Estimated nonlinear relationship between the effective reproduction number Rt and ambient daily ozone concentrations in the regression analysis (based on the selected best-fitting lag of 5 days for A(H3N2), 6 days for A(H1N1), 7 days for A(H1N1)pdm09 and 4 days for influenza B) for influenza A(H3N2), A(H1N1) prior to 2009, A(H1N1)pdm09 from 2009 onwards, and influenza B. The violin plot shown in the lower panel indicates the distribution of daily ambient ozone concentrations; the median is indicated by the white circle, the interquartile range is indicated by the black rectangle, and the blue area displays a kernel density estimate of the distribution of values (i.e. a smoothed histogram).

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