coronavirus live without host

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  • Jan 26, 2019

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Here’s how long coronavirus can live on surfaces

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March 18, 2020

“Never mix bleach with ammonia or other cleaners,” said CDC

Editor’s Note :. This story was updated on Wednesday (18 March) to include warnings not to mix bleach with household cleaning products and to include an update on the publication of the findings.

As a coronavirus outbreak in the US continues to accelerate, the cleaners disappeared from the shelves and people are worried about any underground railroad, a kitchen table and a toilet seat that they touch.

But how long can a new coronavirus linger on the surface, anyway? The short answer is, we do not know. A new analysis found that the virus can survive in the air for 3 hours, the copper for up to 4 hours, the cardboard up to 24 hours and the plastic and stainless steel up to 72 hours. This research was originally published in preprint database on March 11, and now the revised version published March 17 in.

Another study published in February inn previously analyzed several dozen papers on human coronavirus (in addition to the new coronavirus) to get a better idea of ​​how long they can survive outside the body.






They concluded that if the coronavirus recently resembles coronavirus other human beings, as “cousin” that causes SARS and mer, can remain on the surface – such as metal, glass or plastic – for nine days. (as a comparison, the flu virus can survive on surfaces for only about 48 hours)

But some of them do not stay active for at temperatures higher than 86 degrees Fahrenheit (30 degrees Celsius). The authors also found that the coronavirus can be effectively wiped by the household disinfectants.

For example, disinfection by 62-71% ethanol, 0.5% hydrogen peroxide or 0.1% sodium hypochlorite (bleach) can be “efficient” disable coronavirus in a minute, according to the study. “We expect the same effect on the 2019-nCoV,” the researchers wrote, referring to the new coronavirus. But although the new coronavirus is strain similar to the SARS coronavirus, it is not clear whether it will behave.

diluted bleach solution, the same alcohol solution containing at least 70% alcohol and EPA registered disinfectant most common household disinfectant to be effective on the surface of the coronavirus, according to the CDC. Bleach solution can be prepared by mixing 5 tablespoons (cup-third) of bleach per gallon of water 4 tablespoons of bleach per liter of water,

However, “never mix bleach with ammonia or other cleaners,” said CDC , General cleaning mixing together can create toxic fumes ,. For example, when bleach is mixed with an acid solution, a chemical reaction produces chlorine gas, which can cause irritation of the eyes, throat and nose. At high concentrations, the gas can cause difficulty breathing and fluid in the lungs, and at very high concentrations can cause death, according to the report.

There is a possibility that a person be infected by touching contaminated surfaces or objects, “and then touching their own mouth, nose, or maybe their eyes”. “But this is not considered to be the main way viruses spread.” Although the virus remains viable in the air, a new study can not say whether people can become infected by breathing in the air ,.

The virus is most likely to spread from person to person through close contact and respiratory droplets from coughing and sneezing that can land on the mouth or nose of people nearby, according to the CDC.

If someone in the household is suspected or confirmed to have COVID-19 “clean and disinfect daily high-touch surfaces in public areas of the household,” according to CDC recommendations. common household areas including tables, chairs supported hardware, door handles, lamps, remote, handle, table, toilet and sink.

What’s more, “As much as possible, people who are sick should stay in a specific room and away from other people in their homes,” they wrote. caregivers should try to stay away from sick people as much as possible; This means that people who are sick, if possible, should wash and disinfect the surface itself. If that is not possible, the caregiver should wait “as far as practicable” after the sick person uses the bathroom to clean and disinfect surfaces, according to the CDC.

Originally published.

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