Covid-19. Viruses can survive 28 days at room temperature

SARS-CoV-2, responsible for the pandemic that has already infected more than 37 million people on the planet and caused more than one million deaths, can survive 10 more days than the flu virus, pointed out the Commonwealth of Australia Scientific and Industrial Research Organization (CSIRO).

At 20 degrees Celsius, which is room temperature, we found that the virus was extremely strong and survived 28 days on smooth surfaces like glass, found on cell phones, and plastic cards“said the deputy director of the Australian Center for Disease Preparedness at CSIRO, Debbie Eagles, quoted by Efe news agency.

At 30 degrees Celsius, the virus’s chances of survival drop to 21 days on paper notes and seven days on plastic or stainless steel cards.

If the temperature is 40 degrees, SARS-CoV-2 can be kept for 48 hours on plastic surfaces, one day on glass, steel, paper and plastic, and less than 16 hours on cotton clothing, according to the study, published in the scientific journal Virology Journal.

Investigation procedure

The researchers, whose research suggests that high temperatures reduce the possibility of covid-19 infections, inserted viruses into artificial mucus and placed similar amounts of samples taken from infected patients on various surfaces.

Then, they isolated the coronavirus again for a month under conditions of variable temperature, placing the samples in the dark, to remove the effect of ultraviolet rays.

Although the precise role of surface transmission, the degree of contact and the amount of virus required for infection have not yet been determined, we can establish how long this virus survives on surfaces.“said the same source.

The director of the Australian Center for Disease Preparedness at CSIRO, Trevor Drew, however survival time depends on the type and amount of virus, the surface, environmental conditions or how it is expelled from the body.

Proteins and fats in human fluids also significantly increase the virus’s survival time“he explained.

Scientists hope the discovery will contribute to developing risk reduction strategies in areas of high contact and to try to understand the apparent persistent spread in cold environments with high contamination of proteins and lipids, such as slaughterhouses.

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