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Coronavirus, the Covid-19 does not take account of the external temperatures
the ROME - there is a relationship between the outside temperature and the virus: the conviction, growing in the spring you will take away the "crown" should be revised, or at least strengthened, by studies that today there are not. The previous that, so far, has done to support the hypothesis is the trend of the Sars, the micro-organism of the same family as the Covid-19: exploded at the end of 2002, and went to July 2003. However, as has already been explained, Matteo Bassetti , director of the infectious Diseases of the San Martino hospital of Genoa, a coronavirus similar to the "crown" infected many camels in the Middle East in 2014, "in conditions not cold." In the summer, remember the epidemiologists, you live less in closed spaces, increases the "social distance" and decreases the chance of spreading this kind of disease.

The studies on the subject - specifically, a multidisciplinary work group, technical and academic (University of Milano Bicocca, Roma Tre, university of Chieti-Pescara), which is part of the climatologist Massimiliano Fazzini , associate professor in the School of sciences and technologies University of Camerino - say, for now, that the Sars-CoV-2 does not take into account changes in climate. The findings, launched on the 20th January last, and have tested the first area of Wuhan, and then very cold and warm the globe, and, finally, Lombardy and Veneto.

The epicenter of the initial outbreak, the city of Wuhan in fact, it was found that the entire month of February, coincident with the peak of the positive, the temperature was cold, but constantly higher than the average (9.2 degrees celsius as against 5.8 in the three decades 1971-2000). The precipitations were, overall, below average. "These abnormalities are not such as to be able to amplify the signal, epidemiological," it says. If you go to analyze the trend of the infection daily, linking it to heat, resulting in a correlation coefficient equal to 0.11, "statistically insignificant". The first conclusion is: "The framework of the climate has not impacted in any way on the evolution of the epidemic," So now, with Wuhan and the region of Hubei "virus free", a no observed thermal anomalies, "that can't possibly justify a rapid decline of virulence due to the signal heat”.

by Focusing on the domain of lombardo-veneto were considered, in this case, starting from the 20th of February 2020, and up to the 18th of march, temperature data, rainfall and wind speed of the ten stations in the three outbreaks in the main distribution areas of Codogno, Nembro and Vo') and in other four provinces of lombardy primarily involved (Bergamo, Brescia, Cremona, Pavia). Also in this case, the coefficients of correlation between the spread of the daily virus and the parameters meteoclimatici "have not shown any statistical report". There would be, from the point of view of the weather-environmental, no relation between climatic changes and the evolution of the epidemiological of the crown.

Concludes the professor Fazzini: “the parties have made various allusions to the incidence of the variable temperature, highlighting that the virus could lose their virulence to the increase or the sharp decrease of this parameter; some extension workers have intriguingly shown that the Covid-19 will die above 27 degrees centigrade of temperature, but for now, the information is not confirmed by our surveys. Also the variables in the sunshine and wind do not give directions in this regard."

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