According to research published in the New England Journal of Medicine , the SARS-CoV-2 virus can last from a few hours to a few days on the surface or in aerosols (aerosols). including dust particles, smoke, water, heavy metal particles …).
Specifically, research shows that people can become infected with the virus in the air or after touching objects containing germs. The scientists found that the virus lasts for about 3 hours in aerosol, up to 4 hours in the field, 24 hours in cardboard and 2-3 days on plastic or stainless steel.
James Lloyd Smith, co-author of the study and Professor of UCLA’s Ecology and Evolution, said the SARS-CoV-2 virus was transmitted directly through normal intimate contact, making it difficult to prevent the spread. towel. “If you touch objects that other people have used to carry, wash your hands well as they are likely hiding places for viruses,” Professor James said.
The study simulates the mechanism of daily virus activity in households and hospitals with SARS-CoV-2 patients, thereby determining their survival time on the surface of objects. . The team consists of scientists from UCLA, the National Institute of Allergy and Infectious Diseases, the Centers for Disease Control and Prevention and Princeton University.
Professor James and colleagues said that screening tourists to promptly detect cases of infection is not very effective. People infected with SARS-CoV-2 often spread the virus to the community without knowing they were infected until the symptoms appeared.
The characteristic of the virus makes it extremely difficult to detect. Most patients do not have any symptoms for 5 days, or even longer. “Or they may not reveal the truth even though they know they are ill,” Professor James said.
Public health experts say there are five requirements people must follow to limit the spread of Covid-19. The first is to avoid close contact with sick people. Avoid touching your eyes, mouth and nose. Isolate at home when you find yourself sick. Cover the coughing or sneezing with a tissue, throw the tissue in the trash after use. Use specialized house cleaners or towels to wipe surfaces and objects that are frequently touched.