How long has coronavirus lived in the air and on surfaces

10.04.2020 Medicine
How long has coronavirus lived in the air and on surfaces

How active is the coronavirus in the air

Virions of the new strain that got into the air when sneezing or coughing a sick person, viable for 3 hours. The probability of infection is high in the first 66 minutes. After that, the activity of viral particles fades, as does their ability to invade a living organism. To minimize the risk of airborne coronavirus infection, large crowds must be avoided. If you can’t do this, you should keep at least 1.5 m from the other person.

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How long does a coronavirus live on surfaces

A sick person, when touching objects, also leaves virions on their surfaces. On them they are viable for several days. The longest pathogen particles are active on stainless steel and plastic. They live on them for up to three days.

On steel, the so-called half-life, when half the particles die, is 5 hours 38 minutes, and on plastic - 6 hours 49 minutes. After this, the virions weaken, but are still capable of infection. Of particular danger are door handles and carts in stores, elevator buttons, handrails in vehicles and other items that people most often touch. During a pandemic in public places, it is advisable to use disposable gloves.

On cardboard and paper surfaces, the coronavirus survives for about a day. The half-life is about 3.5 hours.

On copper surfaces, the new strain is active up to 4 hours, and half of the virions die in 46 minutes.

In cold water, coronavirus particles can live up to 9 days, and when frozen, they can live up to several years.

What to do

To reduce the spread of the virus, experts recommend disinfecting surfaces with various solutions. A mandatory measure is the frequent washing of hands with soap, but it is effective only for a duration of at least 20 seconds.

Ultraviolet kills a new strain in a few minutes. Alcohol and antiseptics are very effective against KOVID-19 particles. These funds are good in the role of infection prevention, so do not neglect them during a pandemic. It is important that they contain ethanol or propanol. These two types of alcohols have a more powerful ability to deactivate virions. They easily dissolve the shell of the viral particle, and in its absence, it quickly loses its ability to reproduce. Antiseptics are effective if the alcohol concentration in them is not less than 60%.

Perfumes or eau de toilette will also handle the disinfectant. The amount of alcohol in them varies from 60 to 85%.


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