A further 29,892 cases of the Delta variant have been recorded in the UK (Image: Julian Hamilton/Daily Mirror)
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Delta coronavirus variant cases in the UK have more than doubled in the past week.
A further 29,892 Delta infections were recorded in the seven days up to June 9 – up from 12,431 cases the week before, Public Health England said.
The total number of infections attributed to the mutation, which was first detected in India, now stands at 42,323.
The strain now accounts for more than 90% of new Covid cases across the country.
Public Health England said data suggests the Delta variant has a 60% increased chance of spreading in homes compared to the Alpha strain, which was first detected in Kent.
The figures add to mounting fears over the end of lockdown being pushed back beyond June 21 due to the mutation.
The strain first detected in India now accounts for more than 90% of new infections
(Image: Julian Hamilton/Daily Mirror)
The end of restrictions could be delayed for a month to allow more time for people to get two jabs, it has been reported.
It is claimed that discussions in government are being had to decide if a two-week or a four-week delay to the final easing should be implemented.
According to The Times, a delay of a fortnight would not give businesses 'certainty' as it might have to be extended again.
Ministers were reported to have said that a four-week delay would ensure that more people aged in their 40s had received two jabs and become fully vaccinated against the disease.
Meanwhile, doctors treating coronavirus patients in India identified new symptoms which they believe could be linked to the Delta variant.
Fears are mounting that Boris Johnson could delay the end of lockdown beyond June 21
Medics think gangrene, hearing loss and severe gastric upsets could be caused by the Covid-19 strain first identified in India.
Abdul Ghafur, an infectious disease physician at the Apollo Hospital in Chennai, said the virus is becoming more "unpredictable" as new variants emerge.
He added he is seeing more patients with diarrhoea now compared to the first wave of the pandemic.
Six leading doctors treating Covid patients in the country have noticed common symptoms such as stomach pain, nausea, vomiting, loss of appetite, hearing loss and joint pain.
This comes as the Delta variant is now the dominant strain of this virus across the UK, with cases continuing to rise in some areas.
People in Greater Manchester and parts of Lancashire wered urged not to leave their area in response to soaring infections.