Influence of meteorological factors and air pollution on the outbreak of severe acute respiratory syndrome

Cai, Quan-Cai; Lü, Jian; Xu, Qinfeng; Guo, Qiang; Xu, Dapeng; Qilin, Sun; Yang, Hua; Zhao, Guoan; Jiang, Qingwu

doi:10.1016/j.puhe.2006.09.023

Cited by 126 publications

(148 citation statements)

References 12 publications

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“…[12][13][14] Furthermore, SARS-CoV responsible for the 2003 SARS, also demonstrated enhanced transmission at cooler temperatures. [5][6][7] Lower temperatures have been associated with seasonality of other viruses such as influenza and respiratory syncytial virus, which surge during colder winter periods. [15][16][17][18] The reasons for this enhanced viral spread during colder weather may be due to enhanced shedding of the virus during colder weather 17,19 , stability of the virus suspended in air droplets 20 or increased viability on nasal mucus membranes cooled by surrounding air.…”

Section: Discussionmentioning

confidence: 99%

The effect of ambient temperature on worldwide COVID-19 cases and deaths – an epidemiological study

Sethwala

Akbarally

Better

et al. 2020

Preprint

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Section: Discussionmentioning

confidence: 99%

The effect of ambient temperature on worldwide COVID-19 cases and deaths – an epidemiological study

Sethwala

Akbarally

Better

et al. 2020

Preprint

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“…Research on the relationship between meteorological factors and SARS shows that the number of daily cases is negatively correlated with the highest and/or lowest temperatures and the air pressure is positively correlated with SARS transmission (Bi et al,2007). Temperature, RH and wind speed are the three key meteorological factors (Cai et al,2007) that affect the spread of SARS, but seasonal problems cannot be analyzed because SARS occurred only once.…”

Section: Relationship Between Covid-19 Epidemic and Climate Charactermentioning

confidence: 99%

Meteorological factors correlate with transmission of 2019-nCoV: Proof of incidence of novel coronavirus pneumonia in Hubei Province, China

Zhang

et al. 2020

Preprint

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Objective: many potential factors contribute to the outbreak of COVID-19. The aim of this study was to explore the effects of various meteorological factors on the incidence of COVID-19. Methods:Taking Hubei province of China as an example, where COVID-19 was first reported and there were the most cases, we collected 53 days of cases up to March 10(total 67773 confirmed cases).COVID-19 confirmed cases were retrieved from the official website of Hubei Health Commission. Ten meteorological parameters were provided by China meteorological administration, including average pressure (hPa), average temperature ( ), maximum temperature, minimum temperature ( ), average water vapor pressure (hPa), average relative humidity (%),etc.Cross correlation analysis and linear regression were used to judge the relationship of . CC-BY-NC-ND 4.0 International license It is made available under a is the author/funder, who has granted medRxiv a license to display the preprint in perpetuity. (which was not certified by peer review) : medRxiv preprint meteorological factors and increment of COVID-19 confirmed cases. Results:Under 95% CI, the increment of confirmed cases in Hubei were significantly correlated with four meteorological parameters of average pressure, average temperature, minimum temperature and average water vapor pressure (equivalent to absolute humidity).The average pressure was positively correlated with the increment ( r=+0.358,p=0.010).The negative correlations included average temperature (r=-0.306,p=0.029), minimum air temperature (r=-0.347,p=0.013), average water vapor pressure (r=-0.326,p=0.020). The linear regression results show if minimum temperature increases by 1 , the incremental confirmed cases in Hubei decreases by 72.470 units on average. Conclusion:The incidence of COVID-19 was significantly correlated with average pressure, average temperature, minimum temperature and average water vapor pressure. It is positively correlated with the average pressure and negatively correlated with the other three parameters. Compared with relative humidity, 2019-nCov is more sensitive to water vapor pressure. The reason why the epidemic situation in Hubei expanded rapidly is significantly related to the climate characteristics of low temperature and dryness of Hubei in winter.

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“…Human coronaviruses have been shown to survive in PBS or culture medium with 5-10% FCS for several days [12][13][14] but they only survive a few hours after drying [13,14]. There have been some studies reporting an association between the SARS outbreak, metrological factors, and air pollution [15][16][17]. Thus, information on the survival of the SARS coronavirus (SCoV) in the environment at different temperature and humidity conditions is of significant interest to understanding virus transmission.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Temperature and Relative Humidity on the Viability of the SARS Coronavirus

Chan

Peiris

Lam

et al. 2011

Advances in Virology

879

885

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The main route of transmission of SARS CoV infection is presumed to be respiratory droplets. However the virus is also detectable in other body fluids and excreta. The stability of the virus at different temperatures and relative humidity on smooth surfaces were studied. The dried virus on smooth surfaces retained its viability for over 5 days at temperatures of 22–25°C and relative humidity of 40–50%, that is, typical air-conditioned environments. However, virus viability was rapidly lost (>3 log10) at higher temperatures and higher relative humidity (e.g., 38°C, and relative humidity of >95%). The better stability of SARS coronavirus at low temperature and low humidity environment may facilitate its transmission in community in subtropical area (such as Hong Kong) during the spring and in air-conditioned environments. It may also explain why some Asian countries in tropical area (such as Malaysia, Indonesia or Thailand) with high temperature and high relative humidity environment did not have major community outbreaks of SARS.

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Influence of meteorological factors and air pollution on the outbreak of severe acute respiratory syndrome

Cited by 126 publications

References 12 publications

The effect of ambient temperature on worldwide COVID-19 cases and deaths – an epidemiological study

The effect of ambient temperature on worldwide COVID-19 cases and deaths – an epidemiological study

Meteorological factors correlate with transmission of 2019-nCoV: Proof of incidence of novel coronavirus pneumonia in Hubei Province, China

The Effects of Temperature and Relative Humidity on the Viability of the SARS Coronavirus

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