First, it was little greater than a tickly cough and scratchy throat. Then there was a gentle, nagging headache that got here and went. In regular instances, Adrian Simpson, 38, wouldn’t have thought a lot of it.

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However when the cough persevered for a day or so, he went on-line and booked a Covid take a look at. ‘I wasn’t fearful. It was extra out of curiosity than anything,’ explains the first college trainer who lives in Chiswick, West London, along with his accomplice.

When the consequence got here again constructive, Adrian admits he was ‘fairly shocked’. He was additionally confused. It was late January, and he’d been no additional than the native grocery store in weeks – and even then, late within the night when it was quiet.

He’d taken to breaking apart the day by operating just a few laps of the park down the highway which was, he admits, ‘like Piccadilly Circus at instances’. And there’d been a few chilly outside meet-ups with a buddy, however that had been weeks earlier than.

Adrian recovered in a matter of days – his accomplice examined destructive – and he has now completed isolating. However he’s been left with the nagging query that’s little doubt baffled lots of the 4 million Britons who’ve examined constructive for the virus: simply the place did I catch Covid? 

Perfect transmission point: Shops can be a place where the virus lingers but you’re more likely to catch Covid at the checkout than by touching food

Excellent transmission level: Retailers could be a place the place the virus lingers however you’re extra prone to catch Covid on the checkout than by touching meals

A member of staff pictured enforcing social distancing rules in a queue outside a Waitrose supermarket in Frimley, south west of London in March last year

A member of employees pictured imposing social distancing guidelines in a queue exterior a Waitrose grocery store in Frimley, south west of London in March final 12 months

Even with the nation having been in near-total lockdown since January 6, roughly 15,000 individuals a day examined constructive for Covid final week.

The week earlier than, it was 20,000 – each single day. Might or not it’s, as Adrian suspected, many are getting it on the grocery store, or within the park?

It’s now nicely recognised that bars, eating places and gymnasiums – indoor areas the place strict social distancing isn’t all the time attainable – are perfect environments for the virus to transmit between individuals.

However have the few locations left for us to go throughout lockdown now develop into hubs for an infection?

Even a 12 months into the pandemic, discovering a transparent reply isn’t as easy as you would possibly assume. When an individual exams constructive, Check and Hint questions them about locations they’ve been over the previous week. Public Well being England collates this data, after which publishes it. 

Within the newest report, for the week as much as February 11, 53 per cent of people that examined constructive reported having visited a grocery store – both to work or store, oddly, they make no distinction. However, whereas this reveals the place an individual has been, it doesn’t inform us when or the place transmission occurred.

A man walks past a 'please wear a face covering' sign while shopping in Sainsbury's on January 12 this year in Newcastle-under-Lyme

A person walks previous a ‘please put on a face masking’ signal whereas purchasing in Sainsbury’s on January 12 this 12 months in Newcastle-under-Lyme 

An Asda supermarket on Old Kent Road in London pictured packing with people shopping in December last year - when the capital city was under Tier 4 restrictions

An Asda grocery store on Outdated Kent Highway in London pictured packing with individuals purchasing in December final 12 months – when the capital metropolis was beneath Tier 4 restrictions

Public Well being England admits: ‘It is extremely laborious to seek out out the place individuals catch it [Covid].’ The physique additionally experiences the place outbreaks of an infection (outlined by two or extra linked instances) are occurring.

Care houses and workplaces high the present checklist – and Public Well being England confirmed these workplaces might embrace supermarkets, however what number of or what quantity isn’t made public.

Outbreaks at supermarkets involving members of the general public don’t characteristic. In keeping with its newest surveillance experiences, about one in 64 Britons – or 1.57 per cent of the inhabitants – have Covid.


US well being chiefs say individuals who have been vaccinated for Covid now not have to self-isolate after being uncovered to somebody contaminated with the virus.

The prime location for transmission, in keeping with all research, is inside the dwelling, or at work.

Key employees, specifically these residing in poorer, city neighbourhoods; ethnic minorities; and other people in giant households usually tend to have it. And 60 per cent are completely asymptomatic, in keeping with Imperial Faculty London analysis.

Leicester Royal Infirmary virologist Dr Julian Tang believes that supermarkets are an apparent place for an infection.

‘They’re the epicentre of a neighborhood and other people from throughout city can be there on a reasonably common foundation,’ says Dr Tang.

‘Social distancing could be tough in supermarkets, and plenty of have poor air flow techniques, that means the virus can linger within the air.’

He believes he caught Covid final Might at a grocery store.

‘My spouse and I hadn’t been anyplace in months the place we’d come into contact with individuals. After which, after a visit to the grocery store, I obtained in poor health and later examined constructive. It’s laborious to know for certain, however standing subsequent to somebody on the checkout, even socially distanced and masked, could be a danger as Covid can move by way of the edges of a masks.

‘Checkout employees may additionally be a danger as a result of they arrive into contact with so many individuals all through their shift. These screens they’ve in entrance of them don’t supply a lot safety.’

Probably, there can be instances the place members of the general public decide up Covid from somebody working at a grocery store. However it’s employees who’re essentially the most in danger, not customers.

Care homes and workplaces top the current list for where outbreaks of infection are occurring – and PHE confirmed those workplaces may include supermarkets (file photo)

Care houses and workplaces high the present checklist for the place outbreaks of an infection are occurring – and PHE confirmed these workplaces might embrace supermarkets (file photograph)

A shopper wearing a face mask is seen passing a cutout of a police officer in the window of a Morrisons store in south London in January this year

A client sporting a face masks is seen passing a cutout of a police officer within the window of a Morrisons retailer in south London in January this 12 months

Current analysis means that grocery store employees with customer-facing roles are 5 instances extra prone to take a look at constructive for the virus than their back-office colleagues.

Within the American examine, printed in October within the British Medical Journal, consultants additionally discovered three in 5 of those that did take a look at constructive had been asymptomatic.

This, the authors recommended, meant that employees could possibly be a ‘reservoir’ for an infection. 


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At current, face masks are obligatory in supermarkets except you’re medically exempt, which can present safety. However might you catch it from touching objects on cabinets?

The World Well being Organisation states: ‘There is no such thing as a proof that Covid-19 could be unfold by way of contact with meals or meals packaging. Covid-19 is mostly regarded as unfold from individual to individual.’

Our personal public well being tips echo this. However final month the Prime Minister warned that the coronavirus could possibly be unfold by way of dealt with items.

Boris Johnson mentioned: ‘This illness could be handed on not simply by standing too close to to somebody in a grocery store queue, but additionally by dealing with one thing touched by an contaminated particular person. Washing your fingers now’s as essential because it has ever been.’

Dr Tang is circumspect: ‘The hazards of catching the virus from surfaces had been considerably overstated firstly of the pandemic.

‘It’s undoubtedly attainable, but it surely’s unlikely as a result of the virus particles develop into inactivated fairly rapidly exterior the physique.

‘Once more, sporting a masks continues to be your greatest safety right here as a result of even if you happen to get the virus in your fingers, it nonetheless must enter your mouth or nostril to contaminate you.’

Till the vaccine rollout is full, there’s nonetheless a big danger of the an infection charge rising and getting uncontrolled once more.

Dr Tang says: ‘My largest fear although is that we appear to have stopped limiting the variety of individuals in outlets.

People wearing face masks are pictured carrying their shopping bags outside an Asda supermarket in April last year in Birmingham

Individuals sporting face masks are pictured carrying their purchasing baggage exterior an Asda grocery store in April final 12 months in Birmingham

‘The virus continues to be infectious, so all of us have to be cautious of crowded areas in the meanwhile.’

The recommendation on parks is extra reassuring. It has been hypothesised that joggers in a park, respiratory closely, might emit clouds of the virus, in the event that they had been contaminated. Might this so-called ‘Covid slipstream’ infect passers-by?

The reply is that it’s unlikely, in keeping with Professor Catherine Noakes, an airborne-infection knowledgeable from the College of Leeds, who says somebody would wish to cough straight into your face whilst you had been inhaling for an an infection to occur.

However she does say the ‘Covid slipstream’ is a hazard in case you are with somebody for an extended time period. For instance, operating proper behind a buddy for 20 minutes or extra.

She added: ‘The unhappy truth is that your best danger is from the individuals you already know.’

Some names have been modified.

What is the distinction… 

…between a virus and a retrovirus?

Viruses are microscopic organisms that may enter and infect one other organism. They’re, in essence, parasites: they can’t survive for lengthy exterior a number. 

Most extraordinary viruses, together with SARS-CoV-2, enter the host’s cells and use them to copy, destroying the cell within the course of and inflicting harm and illness.

Retroviruses, such because the HIV virus, don’t destroy the host’s cells however inject their genetic materials into them. 

This combines with the genetic materials already inside, turning the cell right into a mini-factory pumping out new copies of the retrovirus. 

Retroviruses can rapidly mutate, with new viral variants present inside a single host. This makes it very tough to seek out efficient remedies.

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