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07-07-2020, 05:39 PM
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Coronavirus: 78% of those testing positive have no symptoms

https://www.bbc.co.uk/news/health-53320155

Only 22% of people testing positive for coronavirus reported having symptoms on the day of their test, according to the Office for National Statistics.

The 78% not reporting symptoms on the day of the test includes "pre-symptomatic" people as well as "asymptomatic"- those who will never develop noticeable symptoms.

Some people testing positive without symptoms might go on to develop symptoms, or they may have already had symptoms and cleared them.

This hammers home the role of people who aren't aware they're carrying the virus in spreading it onwards.
Effectively, killers on the loose .....

The UK government's daily figures released on Tuesday showed another 155 people have died after testing positive for the virus. This takes the total number of (COVID-19 caused) deaths to 44,391.
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07-07-2020, 09:26 PM
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Re: Coronavirus: 78% of those testing positive have no symptoms

I remember reading an article at Yahoo online news back in April that reported on a study being done on the virus. The annoying thing about it all is all that I can remember about the article is that i think 15 or maybe 20 people who was tested as being confirmed to have the virus ALL of them showed no physical signs of having the virus, they was not ill, no fever, no coughs, nothing. Then 8-9 days later all but one showed signs of having the virus.

Throughout the months similar reports have come in from other countries where people have been tested as being positive but show no signs. When Italy was hit hard with the virus and there was mass testing of the public, it was noted many were testing positive but had no symptoms. Only then a number of days later did symptoms start to show.

This is what medical experts have been worried about all along, carriers of the virus but showing no signs of having the virus, thus how do they know they are a carrier if they are not tested.

If anyone can remember, in the early days of the virus, there was a massive news article about a British businessman who had flown from Singapore to France then onto a ski resort and everywhere he was going, people were getting sick, then found to have the virus but yet the man, who did come forward when he realised the press were talking about him, he showed no signs of having the virus. At the time the press were calling him a 'super spreader'. I think the man said he eventually got sick 14-18 days later.

So, unless the whole country is tested, the virus is going to be out there for a long time to come.
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07-07-2020, 09:34 PM
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Re: Coronavirus: 78% of those testing positive have no symptoms

I agree with your last sentence Dodge.
It may well die down, but I don't believe it will be gone completely, it will just be waiting for the right conditions to start up again.
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07-07-2020, 11:21 PM
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Re: Coronavirus: 78% of those testing positive have no symptoms

They need to get a vaccine, like now!!! There must be enough people who have had it & recovered so they can do that, surely?
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12-07-2020, 11:37 AM
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Re: Coronavirus: 78% of those testing positive have no symptoms

Originally Posted by Tiffany ->
They need to get a vaccine, like now!!! There must be enough people who have had it & recovered so they can do that, surely?
In a word, no .....

https://www.bbc.co.uk/news/health-51665497
When will we have a coronavirus vaccine?

A vaccine would normally take years, if not decades, to develop. Researchers hope to achieve the same amount of work in only a few months.

Most experts think a vaccine is likely to become widely available by mid-2021, about 12-18 months after the new virus, known officially as Sars-CoV-2, first emerged.

That would be a huge scientific feat and there are no guarantees it will work.

Four coronaviruses already circulate in human beings. They cause common cold symptoms and we don't have vaccines for any of them.

What still needs to be done?

Multiple research groups have designed potential vaccines, however, there is much more work to do.
  • Trials need to show the vaccine is safe. It would not be useful if it caused more problems than the disease
  • Clinical trials will also need to show the vaccine provokes an immune response which would protect people from getting sick
  • A way of producing the vaccine on a huge scale must be developed for the billions of potential doses
  • Medicines regulators must approve it before it can be given
  • Finally there will be the huge logistical challenge of actually immunising most of the world's population

The success of lockdowns has made the process slower. To know if the vaccine works, you need people to actually be infected.

The idea of giving people the vaccine and then deliberately infecting them (known as a challenge study) would give quicker answers, but is currently seen as too dangerous and unethical.
..... and:

How many people need to be vaccinated?
It is hard to know without knowing how effective the vaccine is going to be.

It is thought that 60-70% of people needed to be immune to the virus in order to stop it spreading easily (known as herd immunity).

But that would be billions of people around the world even if the vaccine worked perfectly.
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12-07-2020, 11:50 AM
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Re: Coronavirus: 78% of those testing positive have no symptoms

Quite, still 2021 better than not at all. If we survive that long that is.
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12-07-2020, 11:53 AM
7

Re: Coronavirus: 78% of those testing positive have no symptoms

Originally Posted by Tiffany ->
Quite, still 2021 better than not at all. If we survive that long that is.
Despite ongoing infections and deaths, the chances are that we will .....
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12-07-2020, 11:55 AM
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Re: Coronavirus: 78% of those testing positive have no symptoms

Originally Posted by Omah ->
Despite ongoing infections and deaths, the chances are that we will .....
Cheerful soul aren't you.
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12-07-2020, 01:04 PM
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Re: Coronavirus: 78% of those testing positive have no symptoms

Hi

I have a somewhat different view.

It is a Coronavirus, they are known to mutate.

https://en.wikipedia.org/wiki/Coronavirus

We need a different flu vaccine every year.

We may well need the same with Covid19.

Coronas are nasty little things.
 

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