coronavirus temperature survival range

  • 5 min read
  • Jan 22, 2019

The Effects of Temperature and Relative Humidity on the Viability ...
The Effects of Temperature and Relative Humidity on the Viability …

As winter looms southern hemisphere, cold temperatures can affect the behavior of the virus – and the people, who tend to spend more time close together indoors

Mon 16 Mar 2020 23:12 EDT

Last modified on Wed 18 Mar 2020 06:54 EDT

In many parts of the world, the winter tends to be when people get sick from the virus that causes colds and influenza.

disease Covid-19 broke out in the winter and spread China in Iran, Italy and the rest of Europe as the countries experiencing the coldest months they

head as Australia to winter, what this could mean for the spread of SARS-CoV-2 -. Covid- 19 viruses that cause disease?

experts have told the Guardian Australia that cold temperatures can affect the behavior and spread of the virus in three ways with each other.

First, the temperature can affect the virus directly.

Some viruses may have a temperature range in which they can survive longer and this is partly dependent on the “envelope” – the outer layer made of lipids (which is why washing hands with soap is effective, because it disrupts the lipid ).

Second, when temperatures drop, this changes the behavior of the human population. People tend to spend more time indoors and closer contacts, making it easier for the virus to spread.

Third, we already know that as in other parts of the world, winter in Australia is when other viruses circulating and this may affect the immunity of the population.

Prof Tom Kotsimbos Association of Monash University, who is also a respiratory physician Alfred hospital in Melbourne, said the seasonal increase in the spread of the virus can cause.

“was established, but if we understand that it is something else. It has no effect, but we do not know specifically. This is a new virus, and it does not mean it will be like.

another “We knew it was about the biology of the virus, general and specific immunity and condition of our environment and behavior,” he said.

But there is far less certainty, he said, about how important each factor is when it comes if a person is sick.

“This is intriguing that [Covid- 19] have spread all over the world pretty quickly – both north and south,” he said, adding that suggest both the new virus is not dependent on temperature or that this dependence is not as important the lack of immunity in the population that it helps to spread.

Some of the research that has not been peer-reviewed have been trying to figure out if there is a clear relationship between the temperature and rate of coronavirus infection, but has been assured or contradictory.

Dr Meru Sheel of the National Center for Epidemiology and Population at the Australian National University, says: “There is no clear evidence that shows the relationship between the outdoor temperature and the spread of coronavirus

.” We do not know enough about Sars-CoV-2 do not yet know how the change will affect the weather and the epidemiology of the disease outbreak.

“in some tropical countries such as the countries in the Pacific Islands, although the weather is warm, there is some activity seasonal influenza and it is related to the increase in tourists from countries such as Australia and New Zealand and to a degree far lower related to changes in the weather. “

Sheel said research is underway to investigate the duration of survival of Sars-CoV-2 under different conditions and on different surfaces.

“The evidence from this study is the possibility to improve our understanding of disease transmission lines and improve our response strategies.

“But until we know more, we need to ensure that all surfaces are decontaminated using a disinfectant such as ethanol, hydrogen peroxide, bleach, etc. -. based guidelines for infection, prevention and control of local “

Sheel designate, including Sars and Mers, who discovered the virus survived for varying lengths of time

Research. found they could rub off on inanimate surfaces such as plastic, metal, wood and paper up to nine days, but effective cleaning disinfectant.

Sheel said than temperature itself, a change in the way Covid -19 spread “likely influenced by the frequency in which people interact during winter compared to the warmer weather”.

Dr Chris Burrell, emeritus professor of virology at the University of Adelaide, said there are other known coronavirus that has been around for half a century and is also prevalent in the winter.

“But that’s because people gather together,” he said.

He said one example of this effect is. (RSV), which causes respiratory disease common in children who tend to arrive in winter

Burrell said: “If you think kids in preschool, in summer they are in the sun and don ‘t has a lot of personal contact with each other. In winter, they live in and breathe the same air.

“I think that any effect of temperature on the coronavirus would not be as important as the effect of limiting its spread by isolating people.”

Ten years ago Tom Kotsimbos lead the task force was to see what the potential impact of early arrival of winter swine flu could have on the population of Australia.

He said the same questions were asked later – about the effects of temperature and flu season overlaps with Australia – is being asked again now

“Obviously this is a different virus -. but we have been here before … but we do not know how Covid-19 will behave.

“at the individual level, if you get a virus when your defense has dropped from a viral infection recently, it could become even more challenging with the progression of the disease.

“previous studies have suggested that if you had just recovered from a viral infection then imm your default system une actually be supported and that the power assistance to the next attack.”

He said the added impact Covid-19 on the season flu’akan puts tremendous stress on the health system ‘.

Dr Kirsty short, a virologist at the University of Queensland, said: “My concern is that [in the winter] people tend to be in close contact and it coincides with the flu season we

, “My main concern is that when you think of the health system, it can be pushed into a bad flu season. If we combine the flu season is moderate with moderate coronavirus season, which could be problematic “

Sheel says:”. As Australia moves to the cold weather, we tend to see an increase in respiratory diseases as usual. colds, influenza and RSV infections

“in order to minimize the pressure on the health system it will be important for the public to adopt preventive measures of public health, vaccinated and stay at home when unwell – practicing social distance.

“It will also help improve our ability to test for Covid-19 and return to protect our vulnerable populations such as the elderly and people with underlying conditions and minimize the risk of exposure to infection Covid-19. All these factors will contribute to a better control of the outbreak. “

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