Scientists say the impact of weather on mortality from COVID-19



The information received can be critical in predicting how the COVID-19 pandemic will develop over the coming months and seasons.

In China, scientists from the University of Lanzhou and the Meteorological Administration of China in Shanghai established the dependence of the mortality rate on the COVID-19 coronavirus on weather using the example of the situation in Wuhan. This is stated in the article published in the article for the electronic scientific library medRxiv, writes.

“We first monitored how air temperature, the spread between its highest and lowest values, as well as humidity affect the mortality rate from COVID-19 (a disease caused by a new type of coronavirus – approx. TASS). Our study shows that variations in temperature and humidity influence the mortality rate from coronavirus quite strongly, ”the article says.

Scientists analyzed the data that Wuhan doctors collected from January 20 to February 29, 2020, that is, when the epidemic peaked and then began to decline.

In total, nearly 2,300 Wuhan residents died during this time. Doctors compared the daily number of cases of their death with how the weather changed in the city at that time. Based on these data, they tried to identify a statistical relationship between meteorological factors and the lethality of the virus.

Scientists’ measurements showed that such patterns do exist, which makes the COVID-19 coronavirus similar to its closest relatives – the MERS virus of the Middle East fever and SARS-CoV-1 SARS, as well as the causative agents of other respiratory diseases.

Thus, an increase in the spread between temperatures day and night increased the mortality rate by 2.9%, while an increase in air humidity by one g / cm3 decreased this indicator by about 11%. In general, these indicators are comparable with how the mortality rate from various respiratory diseases that cause both viruses and bad habits or high air pollution changes.

As scientists emphasize, the patterns they received do not take into account how social factors, including migration and quarantine, influence the spread of the virus and mortality. It is possible that the weather affects this indicator more or less than current data show.

On the other hand, the very fact of the existence of such ties, according to doctors, indicates the need for further observations. Such information, in their opinion, can be critically important in order to predict how the COVID-19 pandemic will develop in the coming months and seasons of the year.

Recall, the World Health Organization said that the situation with coronavirus can be described as a pandemic.

On January 30, WHO recognized coronavirus as a worldwide problem. Later, EU authorities launched the Horizon 2020 innovation program to study coronavirus.

It is impossible to stop the COVID-19 coronavirus in the European Union, said European Commissioner Ursula von der Leyen.


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