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Climate and COVID-19 pandemic: effect of heat and humidity on the incidence and mortality in world's top ten hottest and top ten coldest countries.
Eur Rev Med Pharmacol Sci. 2020 08; 24(15):8232-8238.ER

Abstract

OBJECTIVE

The COVID-19 pandemic has caused a global public health crisis with social, psychological and long-lasting economical damages. Weather-related dynamics have an impact on the pattern of human health and disease. The present study aimed to investigate the impact of heat and humidity on daily basis incidence and mortality due to COVID-19 pandemic in ten of the world's hottest countries compared to ten of the coldest ones.

MATERIALS AND METHODS

Worldwide, we selected 20 countries; 10 hottest countries with the highest temperatures and 10 coldest countries with the lowest temperature. The selection of the countries was based on the daily basis mean temperature from the date of appearance of the initial cases of COVID-19, Dec 29, 2019 to May 12, 2020. In the world's 10 hottest countries, the mean temperature was (26.31±1.51) and humidity (44.67±4.97). However, in the world's 10 coldest countries the mean temperature was (6.19±1.61) and humidity (57.26±2.35). The data on the global outbreak of COVID-19, daily new cases and deaths were recorded from World Health Organization, and daily information on temperature and humidity was obtained from metrological web "Time and Date".

RESULTS

In countries with high temperatures and low humidity, the mean daily cases incidence were (407.12±24.33); cumulative cases (9094.34±708.29); and cumulative deaths (452.84±43.30) were significantly low compared to countries with low temperatures and high humidity: daily cases (1876.72±207.37); cumulative cases (44232.38±5875.11); and cumulative deaths (2008.29±310.13). Moreover, COVID-19 cases and deaths per million population were significantly low in countries with high temperatures (cases 711.23, and deaths 16.27) compared to countries with low temperatures (cases 1685.99; and deaths 86.40). Furthermore, in hottest countries, a 1% increase in humidity reduced number of cases and deaths by (β = -5.40, p<0.001) and (β = -0.187, p=0.004) respectively. A similar trend was seen with a 1°C increase in temperature, reducing the number of deaths by (β = -1.35. p<0.001).

CONCLUSIONS

The results revealed a significant decrease in incidence of daily cases and deaths in countries with high temperatures and low humidity (warmest countries), compared to those countries with low temperatures and high humidity (coldest countries). The findings could be of interest to the policymakers and the health officials on the epidemiological trends of COVID-19 pandemic and weather changes.

Authors+Show Affiliations

Department of Physiology, Strategic Centre for Diabetes Research, College of Medicine, King Saud University, Riyadh, Saudi Arabia. sultanmeo@hotmail.com/smeo@ksu.edu.sa.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32767355

Citation

Meo, S A., et al. "Climate and COVID-19 Pandemic: Effect of Heat and Humidity On the Incidence and Mortality in World's Top Ten Hottest and Top Ten Coldest Countries." European Review for Medical and Pharmacological Sciences, vol. 24, no. 15, 2020, pp. 8232-8238.
Meo SA, Abukhalaf AA, Alomar AA, et al. Climate and COVID-19 pandemic: effect of heat and humidity on the incidence and mortality in world's top ten hottest and top ten coldest countries. Eur Rev Med Pharmacol Sci. 2020;24(15):8232-8238.
Meo, S. A., Abukhalaf, A. A., Alomar, A. A., Al-Beeshi, I. Z., Alhowikan, A., Shafi, K. M., Meo, A. S., Usmani, A. M., & Akram, J. (2020). Climate and COVID-19 pandemic: effect of heat and humidity on the incidence and mortality in world's top ten hottest and top ten coldest countries. European Review for Medical and Pharmacological Sciences, 24(15), 8232-8238. https://doi.org/10.26355/eurrev_202008_22513
Meo SA, et al. Climate and COVID-19 Pandemic: Effect of Heat and Humidity On the Incidence and Mortality in World's Top Ten Hottest and Top Ten Coldest Countries. Eur Rev Med Pharmacol Sci. 2020;24(15):8232-8238. PubMed PMID: 32767355.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Climate and COVID-19 pandemic: effect of heat and humidity on the incidence and mortality in world's top ten hottest and top ten coldest countries. AU - Meo,S A, AU - Abukhalaf,A A, AU - Alomar,A A, AU - Al-Beeshi,I Z, AU - Alhowikan,A, AU - Shafi,K M, AU - Meo,A S, AU - Usmani,A M, AU - Akram,J, PY - 2020/8/9/entrez PY - 2020/8/9/pubmed PY - 2020/8/22/medline SP - 8232 EP - 8238 JF - European review for medical and pharmacological sciences JO - Eur Rev Med Pharmacol Sci VL - 24 IS - 15 N2 - OBJECTIVE: The COVID-19 pandemic has caused a global public health crisis with social, psychological and long-lasting economical damages. Weather-related dynamics have an impact on the pattern of human health and disease. The present study aimed to investigate the impact of heat and humidity on daily basis incidence and mortality due to COVID-19 pandemic in ten of the world's hottest countries compared to ten of the coldest ones. MATERIALS AND METHODS: Worldwide, we selected 20 countries; 10 hottest countries with the highest temperatures and 10 coldest countries with the lowest temperature. The selection of the countries was based on the daily basis mean temperature from the date of appearance of the initial cases of COVID-19, Dec 29, 2019 to May 12, 2020. In the world's 10 hottest countries, the mean temperature was (26.31±1.51) and humidity (44.67±4.97). However, in the world's 10 coldest countries the mean temperature was (6.19±1.61) and humidity (57.26±2.35). The data on the global outbreak of COVID-19, daily new cases and deaths were recorded from World Health Organization, and daily information on temperature and humidity was obtained from metrological web "Time and Date". RESULTS: In countries with high temperatures and low humidity, the mean daily cases incidence were (407.12±24.33); cumulative cases (9094.34±708.29); and cumulative deaths (452.84±43.30) were significantly low compared to countries with low temperatures and high humidity: daily cases (1876.72±207.37); cumulative cases (44232.38±5875.11); and cumulative deaths (2008.29±310.13). Moreover, COVID-19 cases and deaths per million population were significantly low in countries with high temperatures (cases 711.23, and deaths 16.27) compared to countries with low temperatures (cases 1685.99; and deaths 86.40). Furthermore, in hottest countries, a 1% increase in humidity reduced number of cases and deaths by (β = -5.40, p<0.001) and (β = -0.187, p=0.004) respectively. A similar trend was seen with a 1°C increase in temperature, reducing the number of deaths by (β = -1.35. p<0.001). CONCLUSIONS: The results revealed a significant decrease in incidence of daily cases and deaths in countries with high temperatures and low humidity (warmest countries), compared to those countries with low temperatures and high humidity (coldest countries). The findings could be of interest to the policymakers and the health officials on the epidemiological trends of COVID-19 pandemic and weather changes. SN - 2284-0729 UR - https://www.unboundmedicine.com/medline/citation/32767355/Climate_and_COVID_19_pandemic:_effect_of_heat_and_humidity_on_the_incidence_and_mortality_in_world's_top_ten_hottest_and_top_ten_coldest_countries_ DB - PRIME DP - Unbound Medicine ER -