The correlation between atmospheric visibility and influenza in Wuxi city, China
| Autor: | Chao Shi, Yumeng Gao, Yiran Qin, Wendong Liu, Juan Liu, Enpin Chen, Yujun Chen, Ping Shi, Yuan Shen, Qi Zhang |
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| Rok vydání: | 2020 |
| Předmět: |
Atmospheric visibility
Influenzavirus A medicine.medical_specialty China Influenzavirus B Meteorological Concepts Observational Study distributed lag non-linear model 03 medical and health sciences 0302 clinical medicine Meteorological Concept Environmental health Influenza Human medicine Humans atmospheric visibility 030212 general & internal medicine business.industry Public health Risk effect virus diseases General Medicine respiratory tract diseases influenza like illness Nonlinear Dynamics 030220 oncology & carcinogenesis Seasons business influenza Research Article |
| Zdroj: | Medicine |
| ISSN: | 1536-5964 |
| Popis: | Influenza is an acute respiratory infectious disease that poses a threat to public health. We assessed the association between atmospheric visibility and influenza and influenza-like illness (ILI) in Wuxi city, China. Daily meteorological data, ILI activity, and influenza virus infection rates were collected between 31 December 2012 and 31 December 2017. A distributed lag non-linear model (DLNM) was used to analyze the exposure-lag-response of ILI and influenza activity and daily average visibility. A total of 12,800 cases were detected; 1046 cases (8.17%) were of Flu-A and 527 (4.12%) were of Flu-B infection. Our analysis suggested a non-linear relationship between atmospheric visibility and influenza: U-shaped for ILI, and L-shaped for Flu-A and Flu-B. Comparing low visibility (2.5 km) to ILI cases, the risk appeared between day 1 and day 2. For Flu-A, the risk appeared between days 5 and 9, whereas for Flu-B, the risk effect was much stronger and had a longer reaction delay, staying above zero until day 9. The protective effects of high visibility (14 km) on ILI and Flu-B occurred the same day or one day later. However, we found no association between high visibility and Flu-A. In conclusion, our study contributes novel evidence for the effects of atmospheric visibility on influenza. These findings are important for the development of influenza surveillance and early warning systems in Wuxi city. |
| Databáze: | OpenAIRE |
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