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Intellectual people
The SARS-CoV-2 virus can survive on surfaces for 1 week in low temperature and humidity conditions such as autumn, while in summer this time is only 1-3 days.
Newspaper Tomorrow at the South China Post Office (SCMP) citing the results of researchers from the University of Kansas (USA) published on the website bioRxiv.org today 8/31 for the condition of low temperature and humidity, the SARS-CoV -2 virus can persist on a pedestrian’s jacket if left outside for a week and remains contagious during that time. The life expectancy of SARS-CoV-2 in summer is estimated to be 1 to 3 days.
Scientists also believe that the virus can survive longer indoors in colder and drier conditions. Research shows that the decomposition rate of SARS-CoV-2 is almost 8 hours on a stainless steel door handle surface or almost 10 hours on a window, twice the decomposition rate in summer.
The University of Kansas team used climate data in the American Midwest to simulate seasons in the biosafety laboratory. Temperatures were controlled at 13 degrees Celsius and humidity at 66 percent during spring and fall, while summer temperatures were 25 degrees C and humidity at 70 percent. The virus is then applied to 12 different material surfaces that people often come in contact with, such as cardboard, rubber, concrete, N95 masks, and gloves. The goal is to determine if the viability of the virus changes with the seasons.
When the Covid-19 epidemic first broke out, the scientific community expected that the rate of spread of this virus would slow down in the summer and that it would be less likely to survive in the air during hot weather. However, the epidemic resurfaced strongly and even with record rates of spread in many parts of the world during the summer. This raises the question of whether Covid-19 is affected by the season or not.
Fall can also be a time for other infectious diseases like the flu to rise and could put even greater pressure on the global health system. Therefore, experts recommend that people maintain personal hygiene measures, regularly disinfect surfaces that are at risk of spreading the virus, and practice social isolation.
The Covid-19 pandemic has sickened more than 25 million people around the world, of which more than 850,000 have died. The United States, Brazil and India are currently the three largest epidemic centers in the world.
In the context of another strong outbreak, vaccines are considered one of the effective measures to combat the pandemic. Russia approved the first Covid-19 vaccine called Sputnik V, even without completing the third phase of a clinical trial, which is vitally important in determining its efficacy and safety. full of vaccines. A second Russian vaccine is also expected to be approved next month.
China also patented a Covid-19 vaccine developed and developed by a Chinese company. As early as July this year, the Chinese government allowed the Covid-19 vaccine to be tested with people from the high-risk group.
It was once skeptical about the quality of Russian vaccines due to “wear and tear,” but the US Food and Drug Administration (FDA) noted that it is ready to approve vaccines that had not undergone a clinical trial of phase 3. if it feels “satisfying.”
Minh Phuong
According to the SCMP
