Does temperature and humidity influence the spread of COVID-19?: A preliminary report

Raina, Sunil Kumar; Kumar, Raman; Bhota, Sakshi; Gupta, Garima; Kumar, Dinesh; Chauhan, Ramesh Chand; Kumar, Praveen

doi:10.4103/jfmpc.jfmpc_494_20

Cited by 11 publications

(9 citation statements)

References 9 publications

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“…Again, rainfall has not been found associated with COVID-19 pandemic spread in NCT of Delhi (Table 1 ), which has been found consistent with the results reported by Tosepu et al ( 2020 ). Raina et al ( 2020 ) have shown that the countries with higher number of cases have cold weather. These are also the countries with low humidity which could be favoring the transmission and survival of COVID-19.…”

Section: Resultsmentioning

confidence: 99%

Association between climatic variables and COVID-19 pandemic in National Capital Territory of Delhi, India

Singh

Bhardwaj²,

Kumar³

2020

Environ Dev Sustain

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Globally, since the end of December 2019, coronavirus disease (COVID-19) has been recognized as a severe infectious disease. Therefore, this study has been attempted to examine the linkage between climatic variables and COVID-19 particularly in National Capital Territory of Delhi (NCT of Delhi), India. For this, daily data of COVID-19 has been used for the period March 14 to June 11, 2020, (90 days). Eight climatic variables such as maximum, minimum and mean temperature (°C), relative humidity (%), bright sunshine hours, wind speed (km/h), evaporation (mm), and rainfall (mm) have been analyzed in relation to COVID-19. To study the relationship among different climatic variables and COVID-19 spread, Karl Pearson's correlation analysis has been performed. The Mann-Kendall method and Sen's slope estimator have been used to detect the direction and magnitude of COVID-19 trends, respectively. The results have shown that out of eight selected climatic variables, six variables, viz. maximum temperature, minimum temperature, mean temperature, relative humidity, evaporation, and wind speed are positively associated with coronavirus disease cases (statistically significant at 95 and 99% confidence levels). No association of coronavirus disease has been found with bright sunshine hours and rainfall. Besides, COVID-19 cases and deaths have shown increasing trends, significant at 99% confidence level. The results of this study suggest that climatic conditions in NCT of Delhi are favorable for COVID-19 and the disease may spread further with the increasing temperature, relative humidity, evaporation and wind speed. This is the only study which has presented the analysis of COVID-19 spread in relation to several climatic variables for the most densely populated and rapidly growing city of India. Thus, considering the results obtained, effective policies and actions are necessary especially by identifying the areas where the spread rate is increasing rapidly in this megacity. The prevention and protection measures should be adopted aiming at to reduce the further transmission of disease in the city.

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Section: Resultsmentioning

confidence: 99%

Association between climatic variables and COVID-19 pandemic in National Capital Territory of Delhi, India

Singh

Bhardwaj²,

Kumar³

2020

Environ Dev Sustain

Self Cite

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“…One of the COVID-19 pandemic characteristics is a very rapid spread and high mortality rates in countries north of the equator known to have low seasonal air temperatures ( 2 ). Such countries with low humidity are suspected to favor the transmission and survival of SARS-COV-2 ( 3 ). Such a link is not surprising for the virus family as Middle East respiratory syndrome coronavirus (MERS-CoV) human cases in Saudi Arabia were more likely to occur when conditions were relatively cold and dry ( 4 ), where increasing temperature to 65°C had a strong negative effect on viral infectivity ( 5 ).…”

Section: Introductionmentioning

confidence: 99%

Higher Temperatures, Higher Solar Radiation, and Less Humidity Is Associated With Poor Clinical and Laboratory Outcomes in COVID-19 Patients

Hachim

Naeem

et al. 2021

Front. Public Health

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Background: The COVID-19 pandemic varies between countries, with suggestions that weather might contribute to the transmission mode, disease presentation, severity, and clinical outcomes. Yet the exact link between climate and COVID-19 is still not well-explored.Objectives: This study aimed to evaluate the effect of hot geographical region weather [like United Arab Emirates (UAE)] on COVID-19 clinical profile and outcomes. Temperature, wind speed, cloud cover, precipitation, and other weather-related variables were studied concerning COVID-19 patients outcomes and laboratory results.Methodology: A total of 434 COVID-19 positive patients admitted between January and June 2020, were recruited from Al Kuwait Hospital, Dubai, UAE. Temperature, wind speed, cloud cover, and precipitation rate were retrieved from history+ for the day when COVID-19 patients presented to the hospital. These weather parameters were correlated with COVID-19 clinical and laboratory parameters.Results: Our results showed that patients needed admission in days with higher temperatures, higher solar radiation, and less humidity were associated with higher deaths. This association can be linked to the association of these weather parameters with age at diagnosis; higher C-reactive protein (CRP), neutrophil count, white cell count (WCC), aspartate aminotransferase (AST), and alkaline phosphatase (ALP); and lower lymphocyte count, estimated glomerular filtration rate (eGFR), hemoglobin (Hb), Na, and albumin, all of which are considered poor prognostic factors for COVID-19.Conclusion: Our study highlighted the importance of weather-related variables on the dynamics of mortality and clinical outcomes of COVID-19. The hot weather might makes some people, especially those with comorbidities or older ages, develop aggressive inflammation that ends up with complications and mortality.

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“…The results are in agreement with those reported by other authors. [ 1 8 9 10 11 ] Zhong et al . [ 11 ] from China and Al-Hanawi et al .…”

Section: Discussionmentioning

confidence: 99%

“…COVID-19 which emerged from Wuhan city of China in December last year has rapidly spread across the world in a short span of few months. [ 1 ] On 9 January 2020, the novel coronavirus SARS-CoV-2 was officially identified as the cause of the COVID-19 and it was declared as pandemic on 11 March 2020 by World Health Organization (WHO). [ 2 ]…”

Section: Introductionmentioning

confidence: 99%

Public knowledge, attitudes, and practices toward COVID-19

Gupta

Kumari

et al. 2021

Journal of Family Medicine and Primary Care

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Background: COVID-19, since its emergence, has become a global health problem with countries adopting unprecedented measures to control the spread of this pandemic. Adherence of the populations to control measures is affected by their knowledge, attitude, and practices (KAP) towards the disease. It was with this aim that the present study was conducted among the residents of UT of J&K to assess their KAP toward COVID-19. Methodology: A cross-sectional online survey of 464 J&K residents was conducted between 1 st May and 10 th May 2020. Survey Monkey tool was used to develop a link and KAP questionnaire was used for data collection. The survey instrument consisted of demographic characteristics, 11 items on knowledge, 5 items on attitudes, and 7 items on practices. Data collected was represented in descriptive statistics, and one-way analysis of variance was the test of significance. Results: Mean knowledge, attitude, and practice scores were 7.69 ± 0.74, 4.70 ± 0.57, and 4.32 ± 0.68, respectively, among the respondents. Majority (99%) knew the sign and symptoms, mode of transmission of the disease and avoided attending large gatherings. Use of mask was almost universal and about 38% were taking supplements like vitamins or herbal medicines. Good knowledge, positive attitude, and appropriate practices among the respondents about COVID-19 suggest that community based health education programs play a key role in containment and mitigation of this disease. Conclusion: Sustained messaging and updates from the national and local health authorities on COVID-19 to the public are likely to help control the transmission of the disease.

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Does temperature and humidity influence the spread of COVID-19?: A preliminary report

Cited by 11 publications

References 9 publications

Association between climatic variables and COVID-19 pandemic in National Capital Territory of Delhi, India

Association between climatic variables and COVID-19 pandemic in National Capital Territory of Delhi, India

Higher Temperatures, Higher Solar Radiation, and Less Humidity Is Associated With Poor Clinical and Laboratory Outcomes in COVID-19 Patients

Public knowledge, attitudes, and practices toward COVID-19

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