The article has been automatically translated into English by Google Translate from Russian and has not been edited.
Переклад цього матеріалу українською мовою з російської було автоматично здійснено сервісом Google Translate, без подальшого редагування тексту.
Bu məqalə Google Translate servisi vasitəsi ilə avtomatik olaraq rus dilindən azərbaycan dilinə tərcümə olunmuşdur. Bundan sonra mətn redaktə edilməmişdir.

Scientists have failed to infect cells with coronavirus through dirty surfaces

Previous studies were based on a PCR test to detect virus RNA and did not try to cultivate a live pathogen, the researchers said in London, writes

Photo: Shutterstock

Scientists could not detect the SARS-CoV-2 coronavirus capable of infection on contaminated surfaces, and for the study they took smears from hospitals at the peak of the epidemic. A preprint of a report by a group of authors from Imperial College London is published on the medRxiv server.

Note: The article has the status of preprint. This means that the results of the report have not yet been confirmed by an independent expert assessment, as is customary in science, therefore they should not be used for clinical practice. During the pandemic, there is a lot of research - expert panels do not have time to process them promptly.

Samples were collected on April 2–20 using a cotton swab over an area of ​​25 cm2 in the wards of a group of hospitals in northwest London. At that time, all hospitals were fully occupied by patients with COVID-19. The virus was tried to be cultured in Vero E6 (African green monkey kidney) and Caco2 (human colon cancer) cells.

Bottom line: the viral genome was found in 114 of 218 (52,3%) surface and 14 of 31 (38,7%) air samples, but the virus could not be cultured. In addition, virus RNA levels found on surfaces in the hospital were below the minimum that can be cultured two hours after the pathogen has been deposited.

On the subject: To disinfect or not: no known spread of coronavirus across surfaces by WHO

The authors added: the viral RNA could have been on the surfaces for more than two hours before collecting the samples: “We could not find out whether our inability to cultivate the virus is due to low RNA or the time interval since the pathogen settled on the surface, or both.”

Repeated studies have been conducted previously, which indicated that SARS-CoV-2 supposedly can “survive” on dry surfaces and in aerosols from a few days to weeks, especially on smooth surfaces. But so far, the understanding of the role of surface and air pollution in SARS-CoV-2 transmission is limited, scientists write.

The US Centers for Disease Control and Prevention writes: “The transmission of the new coronavirus to people from surfaces infected with the virus has not been documented; it occurs much more often through microdroplets from the infected than through objects and surfaces ”, but at the same time they urge everyone to disinfect.

Educational program coronavirus Special Projects COVID-19

Read also on ForumDaily:

Scientists: dogs can detect COVID-19 in humans almost as accurately as tests

NASA is looking for volunteers to lock them in a laboratory in Russia

Coronavirus May Cause Mental Disorders: What You Need to Know

In Russia, scientists illegally tested the COVID-19 vaccine in humans

Let's face the crisis together and support each other

No one in the world expected a coronavirus pandemic, but she came in disrupting the usual rhythm of life and work of billions of people, causing panic and uncertainty about tomorrow.

ForumDaily also faced financial difficulties due to the loss of some advertisers due to the economic downturn and quarantine. But we are not reducing the number of materials and the mode of operation, since we want our readers to receive timely and up-to-date information in this difficult time. In addition, we support Local small businesses in the USA that suffer the most.

But ForumDaily is also a small business. Despite the loss of part of the income, we are doing our best to ensure that you are informed and armed with all the necessary knowledge to counter the pandemic and resolve other important issues during quarantine.

To maintain this rhythm of work, we need your help. We will be grateful for any amount that you are willing to allot to support our team.

Let's face the crisis together!

Security of contributions is guaranteed by the use of the highly secure Stripe system.

Always yours, ForumDaily!

Do you want more important and interesting news about life in the USA and immigration to America? Subscribe to our page in Facebook. Choose the option "Priority in the show" - and read us first. And don't forget to subscribe to ForumDaily Woman and ForumDaily New York - there you will find a lot of interesting and positive information.

1052 requests in 2,740 seconds.