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WHO : Asymptomatic spread of coronavirus is ‘very rare'

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MikeWM

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https://www.cnbc.com/2020/06/08/asy...-arent-spreading-new-infections-who-says.html
“From the data we have, it still seems to be rare that an asymptomatic person actually transmits onward to a secondary individual,” Dr. Maria Van Kerkhove, head of WHO’s emerging diseases and zoonosis unit, said at a news briefing from the United Nations agency’s Geneva headquarters. “It’s very rare.”
..
“We have a number of reports from countries who are doing very detailed contact tracing,” she said. “They’re following asymptomatic cases. They’re following contacts. And they’re not finding secondary transmission onward. It’s very rare.”

Yes, it is the WHO, so based on their recent performance they'll probably change their mind tomorrow.

But if the risk from asymtomatic cases is negligible, that sheds new light on the supposed need for ongoing 'social' distancing, masking, etc.
 
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Mag_seven

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Assuming that people with symptoms isolate themselves then this is a very positive development. It did strike me that the only reason we are trying to avoid catching it from others by social distancing etc is the big assumption that any person who sneezes near you (due to say hay fever) or in a confined space is asymptomatic.
 

BJames

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If this is true, it should go a long way to helping us start going back to normal. Hopefully parents will feel less worried about sending their kids back to school and this certainly backs up my point about Universities needing to return to normal as quickly as possible come September. Combine this with an actually effective track and trace system and we have a proper chance at reducing the cases by a significant level.
 

Silverlinky

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Life won't return to normal until the media push more stories like this rather than the doom and gloom that they do.

Cases are falling and have fallen considerably, deaths are falling and have fallen considerably, the R rate has fallen from 3 to under 1, deaths in care homes are under control, carriers of the virus are less prevalent in society than they were. Hospitals only have 8% of their ventolator capacity in use.......

Kids can't go back to school for another three months because Unions and parents say it isn't safe. Put more stories like the one above out to change the public perception of this virus into what it should have always been.,,,,,a virus which affects very few of the overall population and kills even fewer, rather than comparing it to the Plague.
 

Yew

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It's worth remembering that their definition of asymptomatic is someone who shows no symptoms, whereas someone who is infected tha later shows symptoms would be classed a pre-symptomatic. Though it goes without saying that lower viral loads, and less frequent emissive episodes is less likely to transmit also, we must be careful in conflating to two regimes, and there doesn't seem to be anything on pre-symptomatic cases yet.
 

6862

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And now the WHO has backtracked on this claim. They're just agitating the already muddy waters that cover our understanding of this virus!
 

MikeWM

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And now the WHO has backtracked on this claim. They're just agitating the already muddy waters that cover our understanding of this virus!

I said they'd probably change their mind *tomorrow*! They're outperforming themselves on this one.

Seriously though, the WHO aren't doing very well at this, are they?
 

LAX54

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That's certainly very encouraging.

It is, but the World is now so wound up and hysterical about 'social distancing' due to what they have read, and been told by 'those that know', it will be difficult for them to accept 'normal'
 

Darandio

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I don't like to back up the Donald, but I think he did have a point about them.

I disagree that he should be trying to pull the rug from beneath them mid-pandemic, but he certainly does have a point that their role should be scrutinised once this has died down.
 

adc82140

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The WHO is a fantastic body for advising developing nations who have less established healthcare systems. Therefore those countries that can afford to fund it should. However I can't help but think they've overstretched themselves here, and are getting rather carried away in their current role.
 

LAX54

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The WHO is a fantastic body for advising developing nations who have less established healthcare systems. Therefore those countries that can afford to fund it should. However I can't help but think they've overstretched themselves here, and are getting rather carried away in their current role.
Just read the article, that is referred to on this thread, one seems convinced that it is not passed on, or if it is, it is very rare, yet another disagrees ! but of course in general it will be the bad news version that wins out !
 

Bantamzen

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https://www.cnbc.com/2020/06/08/asy...-arent-spreading-new-infections-who-says.html


Yes, it is the WHO, so based on their recent performance they'll probably change their mind tomorrow.

But if the risk from asymtomatic cases is negligible, that sheds new light on the supposed need for ongoing 'social' distancing, masking, etc.

I've always been led to understand that airborne viruses like these not only utilise human cells for reproduction, but also exploit how our bodies actually react, i.e. coughing & sneezing. And it is quite logical, the further the virus can induce spread, the more successful it is likely to be. Whereas if someone has the virus and are not projecting its offspring as far, the likelihood of cross-infection reduces and the virus risks being taken out by the human immune system without having successfully passed on copies of itself to another host.

So with this in mind we look critically at social distancing, mask wearing etc and ask, who is most likely to be passing enough viable copies of the virus into the environment, someone with symptoms or someone without. Clearly it is those with the symptoms, which is why in some countries people with them have previously taken to wearing masks, and why those without did not. Furthermore someone without symptoms may not only not be spreading as many copies of their invader, they may actually be destroying them before enough become viable and be passed on. And of course there is also the possibility, nay probability that someone without symptoms actually doesn't have the virus at all.

And yet the world's kneejerk reaction has been to suggest that healthy people are as much as a risk as those displaying symptoms. I suspect in the coming weeks and months that idea will be broken down piece by piece, and this is just such one of them.

Life won't return to normal until the media push more stories like this rather than the doom and gloom that they do.

Cases are falling and have fallen considerably, deaths are falling and have fallen considerably, the R rate has fallen from 3 to under 1, deaths in care homes are under control, carriers of the virus are less prevalent in society than they were. Hospitals only have 8% of their ventolator capacity in use.......

Kids can't go back to school for another three months because Unions and parents say it isn't safe. Put more stories like the one above out to change the public perception of this virus into what it should have always been.,,,,,a virus which affects very few of the overall population and kills even fewer, rather than comparing it to the Plague.

Indeed, it does seem increasingly that the decision making is being driven by risk adversity rather than on data & science. The data does now very blatantly point to the people by far and away most at risk, and the environments they frequent. The science, understandably to be fair, is a lot more cautious about it, but even so is starting to move away from the worst case thinking to a more rational and peer-based understanding of the impact of the virus. So one is left increasingly with the feeling that the decisions are becoming more political and appeasing. However as discussed on many other threads, economic pressures are starting to bite, so political stances will change very quickly.

And now the WHO has backtracked on this claim. They're just agitating the already muddy waters that cover our understanding of this virus!

I think the WHO are trying to balance themselves between the data, science and political pressures. Sadly whilst they held their nerve for months on the position with masks, I think the growing pressure from the Trump administration on them has had a negative effect in so much that they are now trying to make the political positions already held around the globe more equal than the science or data.
 

underbank

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And yet the world's kneejerk reaction has been to suggest that healthy people are as much as a risk as those displaying symptoms. I suspect in the coming weeks and months that idea will be broken down piece by piece, and this is just such one of them.

It's easier to get people to comply if everyone has to do it. Right at the start, we tried telling people with symptoms to self isolate - many didn't. We told people to wash their hands regularly - many didn't. We told people to catch coughs and sneezes and not to spit - many didn't! We told people to avoid busy places and to social distant - many didn't.

In fact, many people with symptoms have admitted they went to Cheltenham and Anfield anyway.

Pubs were more crowded than normal on the Friday evening just after Boris said pubs had to close that day, with people going in their hoards for "a last pint".

Funny how huge numbers of nurses and teachers went off sick from work due to symptoms, but then went out socialising or to events!

You can't micro-manage people'e behaviour on an individual basis - everyone thinks they're special and the rules don't apply to them. The only way in this modern society is make things "societally" unacceptable such as drink driving etc.

At least when we continue to come out of lockdown, it may have drummed it into most people to self isolate with symptoms, wash their hands more, catch sneezes, stop spitting, respect personal distance etc. Let's hope that basic hygiene and common sense is now more engrained in people so that things are safer generally when we get back towards normal life.
 

Bantamzen

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It's easier to get people to comply if everyone has to do it. Right at the start, we tried telling people with symptoms to self isolate - many didn't. We told people to wash their hands regularly - many didn't. We told people to catch coughs and sneezes and not to spit - many didn't! We told people to avoid busy places and to social distant - many didn't.

In fact, many people with symptoms have admitted they went to Cheltenham and Anfield anyway.

Pubs were more crowded than normal on the Friday evening just after Boris said pubs had to close that day, with people going in their hoards for "a last pint".

Funny how huge numbers of nurses and teachers went off sick from work due to symptoms, but then went out socialising or to events!

You can't micro-manage people'e behaviour on an individual basis - everyone thinks they're special and the rules don't apply to them. The only way in this modern society is make things "societally" unacceptable such as drink driving etc.

At least when we continue to come out of lockdown, it may have drummed it into most people to self isolate with symptoms, wash their hands more, catch sneezes, stop spitting, respect personal distance etc. Let's hope that basic hygiene and common sense is now more engrained in people so that things are safer generally when we get back towards normal life.

Easier does not mean better, and can lead to unwanted consequences.
 

HSTEd

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They needed Asymptomatic spread to be very rare to justify the plan of waiting for contact tracing systems.

In reality it seems exceptionally unlikely that they will prove effective in limiting the spread.
 
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