Coronavirus develops in order to better spread through air, scientists of Maryland University, scientific work published in clinical infectious deeases.
American doctors described the evolution of coronavirus. As researchers infected by the Alpha strain (strain caused a surge of the number of patients in the UK in January 2021) exhaled into the air 100 times more than the virus than those who picked the original, Wuhan, version COVID-19. Alpha Sars-COV-2 turned out to be 18 times more contagious other strains before it
From May 2020 to April 2021, biologists studied 49 people infected with Alpha and earlier virus strains. All volunteers did not have symptoms, or were coronavirus in a light form. The researchers focused on the analysis of air quality, exhaled by patients in the special device Gesundheit-II. They were asked to breathe 30 minutes in the mask and as much without it. The amount of virus exhaled by patients was 43-100 times more than that of other strains.
According to scientists, “Delta” is probably even more adapted for the “travel” into the air. Leading author Dr. Don Milton (Don Milton) considers it necessary to carry individual protective equipment: tissue or medical masks are doubled the risk of contamination of COVID-19. He called on the company to conduct ventilation and disinfection of jobs.
Previously, British doctors called the Indian strain of coronavirus the most dangerous and contagious. According to them, the risk of hospitalization when infected by the Indian strain COVID-19 (Delta) is two times higher than when infected by the British strain (Alpha).