Pathogens such as viruses spread along chains of infection – from infected person to new host. The only certain way to stop the spread of a virus such as Covid-19 is to break as many of those chains as possible. To starve the virus of new hosts.
The only way to break the chains of infection and starve the virus of new hosts is to isolate potential new hosts from potentially infected person. When there is no way to easily and reliably tell whether a person is infected or infectious then this means isolating every individual from every other individual. If no two individuals in a population come into contact or proximity, the virus cannot spread. There are no chains of infection along which it can travel.
The more breaks in the chain there are, the less chance there is of anyone becoming infected. None of us has any way of knowing if we are on a chain that has been broken at some prior point.
The only way to be certain that the chain is broken is to be the break.
Will you be a link in a chain of infection? Or will you be a break?
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Peter A Bell 
I don’t agree. The human immune system is activated by contact with viruses and bacteria. Total isolation harms it just as lack of exercise causes the muscles to atrophy. I’d like to quote from the article by Professor Scott Atlas https://thehill.com/opinion/healthcare/494034-the-data-are-in-stop-the-panic-and-end-the-total-isolation
“Fact 1: The overwhelming majority of people do not have any significant risk of dying from COVID-19.
Fact 2: Protecting older, at-risk people eliminates hospital overcrowding.
Fact 3: Vital population immunity is prevented by total isolation policies, prolonging the problem.
Fact 4: People are dying because other medical care is not getting done due to hypothetical projections.
Fact 5: We have a clearly defined population at risk who can be protected with targeted measures.”
That clearly defined, at risk population was always known. It should have been protected from the start but it wasn’t.
Denmark started moving out of lockdown a fortnight ago. Would it be so hard to follow this example?
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COVID-19 is not the only pathogen. Immunity isn’t a given. Exercise and isolation are not mutually exclusive. You really haven’t thought this through.
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Yes safe social distancing is a low tech, low cost solution. But what do you do if others, acting on UK advice, ignore it?
However, seems like 70% disagree with government in loosening the lockdown, let’s hope it stays that way.
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It is because others may not make the effort that each of us must make an extra effort.
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Living in a rural area with isolated villages made many folk locally begin to question the lockdown, that is until a local paramedic, a thoroughly decent guy, died.
Now? People actually know someone who wasn’t a typical person they thought could get the virus. Lock down is now VERY popular…
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Nothing like a bit of death to sharpen the wits.
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