Influence of extreme weather and meteorological anomalies on outbreaks of influenza A (H1N1)

Xiao, Hong; Tian, Huaiyu; Lin, XiaoLing; Gao, Lidong; Dai, Xiang-yu; Zhang, Xixing; Chen, BiYun; Zhao, Jian; Jing-Zhe, XU

doi:10.1007/s11434-012-5571-7

Cited by 29 publications

(23 citation statements)

References 57 publications

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“…It has been proposed that sunshine could affect the in uenza activity through the mediation effect of Vitamin D synthesis on individuals' immune response to infection 33,34 , but remains unveri ed. In addition, our study showed that low wind speed increases the risk of in uenza activity in Chongqing, which was consistent with previous study 35 . Future studies are needed to fully understand the roles of these meteorological factors on in uenza activity and the potential mechanisms.…”

Section: Discussionsupporting

confidence: 93%

Effect of meteorological factors on the activity of influenza in Chongqing, China, 2012–2019

Liu

Gao

et al. 2020

Preprint

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Background: The effects of multiple meteorological factors on influenza activity remain unclear in Chongqing, the largest municipality in China. We aimed to fix this gap in this study.Methods: Weekly meteorological data and influenza surveillance data in Chongqing were collected from 2012 to 2019. Distributed lag nonlinear models (DLNMs) were conducted to estimate the effects of multiple meteorological factors on influenza activity.Results: Inverted J-shaped nonlinear associations between mean temperature, wind speed, sunshine and influenza activity were found. The relative risks (RRs) of influenza activity increased as weekly average mean temperature fell below 18.18℃, average wind speed fell below 1.55 m/s and average sunshine fell below 2.36 hours. Taking the median values as the references, lower temperature and windless could significantly increase the risks of influenza activity and last for 4 weeks. A J-shaped nonlinear association was observed between relative humidity and influenza activity; the risk of influenza activity increased with rising relative humidity with 78.26% as the break point. Taking the median value as the reference, high relative humidity could increase the risk of influenza activity and last for 3 weeks. In addition, we found the relationship between aggregate rainfall and influenza activity could be described with a U-shaped curve. Rainfall effect has significantly higher RR than rainless effect.Conclusions: Our study shows that multiple meteorological factors have strong associations with influenza activity in Chongqing, providing evidence for developing a meteorology-based early warning system for influenza to facilitate timely response to upsurge of influenza activity.

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Section: Discussionsupporting

confidence: 93%

Effect of meteorological factors on the activity of influenza in Chongqing, China, 2012–2019

Liu

Gao

et al. 2020

Preprint

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“…For the United States, absolute humidity was identified as a critical determinant of 24 observed influenza mortality (Barreca and Shimshack, 2012) and anomalously low humidity levels were found to precede the onset of increased wintertime influenza-related mortality in the United States by several weeks (Davis et al, 2012;Shaman et al, 2010). The respiratory impact of low atmospheric humidity was evident in other studies in Belgium (Lander et al, 2012), China (Xiao et al, 2013), Japan (Harata et al, 2004), Israel (Yaari et al, 2010), the Netherlands and Portugal (van Noort et al, 2012), and was inferred in forensic studies of major historical influenza outbreaks in England and Wales (He et al, 2013). Yet in studies that utilized relative humidity, Zhang et al (2013) found a negative association between RSV and Rodriguez-Martinez (2015) uncovered no relationship.…”

Section: Humidity and Pulmonary Diseasementioning

confidence: 90%

Humidity: A review and primer on atmospheric moisture and human health

Davis

McGregor

Enfield

2016

Environmental Research

340

208

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Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. cases when the proximity to saturation is not medically relevant. Care must be taken in averaging certain humidity variables daily or seasonally to avoid statistical biasing associated with variables that are inherently diurnal through their relationship to temperature.

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“…A positive association between the occurrence of influenza B, influenza A virus subtype (H1N1) and relative humidity was reported in three studies [60,61,63]. Other associations reported included: an inverse association between the occurrence of ILI and influenza (A and B) [59,60]; influenza epidemics when the temperatures are at certain extreme point or within a specific range, although varied by area [57,62,63] (TABLE 1).…”

Section: Air-borne Diseasesmentioning

confidence: 94%

“…Mediation of incidence may occur through the effects of climate change and UV radiation on the vaccine and cold chain, the target population or the host/vector/pathogen (FIGURE 2). Climate change will result in increased mean temperature, changes in precipitation patterns, more frequent and intense extreme weather events (e.g., heat waves, floods and cyclone) and air pollution and aeroallergens that have been found to be associated with the incidence and transmission patterns of infectious diseases [24,25]. Most VPID are influenced by climatic factors.…”

Section: Impacts Of Climate Variability and Uvr On Vpidmentioning

confidence: 99%

“…Temperature was assessed by seven out of nine available studies about various types of influenza [57][58][59][60][61][62][63], however, two studies [59,61] demonstrated an inverse association between temperature and the incidence of seasonal influenza or influenzalike illness (ILI). A positive association between temperature and the incidence of severe acute respiratory infection or influenza H3N2 was reported by two studies [58,60].…”

Section: Air-borne Diseasesmentioning

confidence: 99%

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The potential impact of climate change and ultraviolet radiation on vaccine-preventable infectious diseases and immunization service delivery system

Guo¹,

Naish

Tong

2014

Expert Review of Vaccines

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Climate change and solar ultraviolet radiation may affect vaccine-preventable infectious diseases (VPID), the human immune response process and the immunization service delivery system. We systematically reviewed the scientific literature and identified 37 relevant publications. Our study shows that climate variability and ultraviolet radiation may potentially affect VPID and the immunization delivery system through modulating vector reproduction and vaccination effectiveness, possibly influencing human immune response systems to the vaccination, and disturbing immunization service delivery. Further research is needed to determine these affects on climate-sensitive VPID and on human immune response to common vaccines. Such research will facilitate the development and delivery of optimal vaccination programs for target populations, to meet the goal of disease control and elimination.

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Influence of extreme weather and meteorological anomalies on outbreaks of influenza A (H1N1)

Cited by 29 publications

References 57 publications

Effect of meteorological factors on the activity of influenza in Chongqing, China, 2012–2019

Effect of meteorological factors on the activity of influenza in Chongqing, China, 2012–2019

Humidity: A review and primer on atmospheric moisture and human health

The potential impact of climate change and ultraviolet radiation on vaccine-preventable infectious diseases and immunization service delivery system

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