Prioritising coronavirus testing in high-risk areas has led to shortages elsewhere, resulting in some folks with signs being requested to drive greater than 100 miles for a swab.
The federal government says areas with fewer Covid-19 instances have had their testing capability decreased to deal with outbreaks elsewhere.
However public well being consultants warn this might miss the beginning of recent spikes.
In the meantime, a £500m fund to trial a 20-minute saliva check has been unveiled.
Well being Secretary Matt Hancock instructed the BBC that testing was being targeted on areas with outbreaks the place case numbers had been a lot greater, however the "overwhelming majority" of individuals might get a check "near house".
He admitted there have been "operational challenges", including that the trial of recent speedy exams might "remedy the issue".
Teams of individuals together with employees and college students on the College of Southampton and 4 colleges within the Hampshire metropolis will participate within the trial.
There may even be a trial in Salford of the advantages of repeatedly testing a inhabitants.
"Wanting a vaccine, that is the most effective probability we've of lowering social distancing while controlling the virus, particularly with winter coming and all of the challenges that brings," the well being secretary instructed BBC Radio 4's At present programme.
'I used to be instructed to journey 250 miles for a check'
When David Llewellyn tried to ebook a check on Sunday he was directed to a check centre close to Blackburn - 250 miles from his house in Stowmarket, Suffolk.
"I believed I might entered my house location incorrectly so went by the reserving course of once more, solely to get the identical location for testing.
"Evidently I've subsequently ordered a house testing equipment, which regardless of three automated electronic mail reminders to take the check has but to reach. I might do the check if I had it.
"I feel it is ridiculous. The concept that the check centres close to me in rural Suffolk are at capability is unlikely and while I settle for that Covid is unpredictable and the science is altering on a regular basis, I do not suppose the federal government have gotten their act collectively.
"The very fact I have been directed 250 miles away with the intention to get a check exhibits they have not bought it proper but."
It got here as a postcode search of the federal government's coronavirus check reserving service revealed:
- Folks with signs residing in London are being directed between 50 and 135 miles away, together with to testing websites in Cardiff and the Isle of Wight
- A postcode in Devon was directed to a testing centre 109 miles away in Carmarthen
- One in Worthing was directed 40 miles away
- One in Cumbria was despatched 50 miles away to Dumfries
- In Sheffield on Wednesday morning the closest obtainable testing centre was 20 miles away
These distances are those which might be given on the federal government web site, however they seem to have been calculated because the crow flies, slightly than being a real reflection of how lengthy it might take to drive - for instance, the Devon to Carmarthen route was really a 206-mile drive in accordance with Google Maps.
Dr Zoe Norris, a GP in Yorkshire, instructed BBC Breakfast such journeys can be a "big endeavor" for these with coronavirus signs, which embrace a fever and chronic cough.
"I've definitely bought sufferers who wouldn't handle to drive these distances," she added.
Rationing
Nationwide testing capability has not decreased, nevertheless it's already being outstripped by rising functions for exams.
The Division of Well being and Social Care (DHSC) has responded by rationing testing slots, with fewer exams obtainable in areas with fewer instances.
Dr Stephen Baker on the College of Cambridge, who has been conducting testing for the realm's hospital employees, stated this was a "pragmatic transfer from the federal government to focus assets the place they're most wanted", however the technique might turn out to be an issue if extra instances developed outdoors the present areas of concern.
Folks with signs and important staff can nonetheless apply for house kits, though these take longer to return a consequence.
It has additionally been taking longer for individuals who do go to a drive-through testing centre to obtain their outcomes.
NHS Take a look at and Hint figures present within the week of 13-19 August, 41% of in-person exams at cell testing items and drive-through centres gave outcomes inside 24 hours. That is down from 61% the week earlier than.
For all routes mixed, together with house kits, 20% of exams had outcomes again inside 24 hours, in contrast with 29% the week earlier than.
Is demand for exams outstripping provide?
Common mass testing of individuals with out signs is seen by ministers as the most effective passport to additional easing of lockdown restrictions till a vaccine is developed.
Easy kits with speedy outcomes, used weekly, may give assurances folks do not have coronavirus. That is what the brand new funding for trials and pilot schemes is all about - however that is a long-term objective.
The fact proper now's capability shortages and long-distance drives for some folks needing exams.
Demand appears to be outstripping provide even after a giant enlargement in testing websites and laboratories.
Public well being consultants have warned these points must be urgently addressed to make sure that native outbreaks could be correctly monitored and tackled as winter approaches.
'Excessive demand'
Paul Hunter, a public well being skilled and professor of medication on the College of East Anglia, stated these points might act as "large disincentive to being examined" and lead to lacking native will increase "early sufficient to perhaps cease extra widespread an infection".
A DHSC spokesperson stated: "There's a excessive demand for exams and our laboratories proceed to show check outcomes round as shortly as potential.
"To ensure we keep answerable for this virus we're concentrating on our testing capability on the areas that want it most, together with these the place there may be an outbreak, in addition to prioritising at-risk teams."
However virologist Prof Nicola Stonehouse on the College of Leeds stated: "Though instances are low we have to do not forget that the pandemic began from a single case and that solely a small variety of folks getting into the UK (primarily from Italy) resulted within the massive variety of instances earlier this yr."
"The important thing to controlling the pandemic must be by testing. And this must be made as accessible as potential," she added.
The federal government has pledged to extend its capability to 500,000 exams a day by the tip of October.
At present, it says, testing capability is about 350,000 a day - however solely simply over half of that's getting used.
Day by day testing has solely damaged 200,000 on in the future, regardless of the federal government hailing reaching its goal of getting that stage of capability on the finish of Could.
The DHSC pressured that reserving slots had been added within the night for morning appointments and within the morning for afternoon appointments, so extra native slots would possibly turn out to be obtainable by the day.
The web site states: "This service is at the moment very busy. In case you are unable to ebook a check now or the situation and time just isn't handy for you, please attempt once more in a number of hours when extra exams must be obtainable.
"If no exams can be found on-line, don't name helplines to get a check. You won't be able to get a check by the helplines."
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