Scientists are "puzzled" by the recent drop in Covid infections, citing the heatwave, school closures, the Euros tournament ending or a decrease in testing.
Few straws have been left unclutched in the bid to explain the anomaly. Yet amid the bewilderment, few seem willing to consider the prospect that it is the vaccination programme which is doing most of the heavy lifting.
Science Editor Sarah Knapton explains in this analysis that Britain may be finally nearing the Holy Grail of herd immunity.
It comes as one of the world's most renowned forecasters criticised Prof Neil Ferguson for his "overconfident" prediction that Covid cases could possibly rise to 200,000 a day. It looks like Britain actually peaked at around 60,000 cases on July 15.
Nate Silver, an American statistician, said there were too many variables in the pandemic for anyone to be certain of the outcome.
Harry de Quetteville asks: Why are we in thrall to 'superforecasters' like Prof Ferguson?
Meanwhile, Britain expects the US to drop its UK travel ban after ministers reopened the borders to Americans.
Transport Secretary Grant Shapps yesterday announced that fully vaccinated travellers from the US and the EU would be allowed to enter Britain without quarantine from Monday. He also made clear that he expects the move to be reciprocated.
But do not pack your bags yet. US Correspondent Josie Ensor explains why President Biden is in no rush to let Britons back in to the US.
PS: Downing Street has no plans to run a nationwide campaign to get people back to work in offices as they did last year, meaning working from home could become the norm for many.
Fan injured in Hillsborough tragedy dies 32 years on
The Hillsborough disaster has claimed its 97th victim after a man left with life-changing injuries as a result of the crush died at the age of 55. The family of Andrew Devine last night confirmed that he died on Tuesday, 32 years after he was badly hurt in the tragedy at the FA Cup semi-final on April 15 1989. Mr Devine was left in a wheelchair and unable to speak. A coroner's inquest ruled yesterday that he was unlawfully killed as a result of the disaster. Mr Devine was described by his family as a "much-loved son, brother and uncle", while Liverpool FC said it was "deeply saddened" by his death. Read what happened in the worst stadium-related disaster in English sporting history.
Welsh slate Unesco for 'attracting too many English'
Welsh-speaking residents of the "British Machu Picchu" fear Wales's newest Unesco site will attract too many English tourists. The slate landscape of North West Wales, known for the historic quarrying of the building material, has been accredited as the UK's newest world heritage site. But campaigners in Gwynedd warned this could cause an influx of tourists and turn Welsh communities into "ghost towns". Read our appraisal of the quarries that are "just as fascinating as the Taj Mahal".
Daily dose of Matt
Today's cartoon | View Matt's latest cartoon on an imagined future of Covid passports
Also in the news: Today's other headlines
'Transphobic' | A French teacher has been sacked after attempting to scupper the election hopes of a transgender candidate who wanted to be Head Girl. Susan Field told her tutor group she felt the pupil was not "representative" of the student body and it was not an "appropriate" role for her, the teaching watchdog found. Camilla Turner has the full story.
Ee bah gone? | Northern accents could be dead in 45 years
Westminster wages | Treasury civil servants given 30pc pay rises
Around the world: Beijing boosts ties with Taliban
China has pledged its support for the Taliban during Afghanistan's reconstruction, a major boon for the insurgents. Joe Wallen reports that Taliban leaders were invited to China's foreign ministry in Beijing in the militant group's first official meeting with a foreign government since it launched an offensive in May. View more world pictures of the day.
Comment and analysis
Allister Heath | Tories are drifting into an autumn of political chaos
Ambrose Evans-Pritchard | Western investors are 'road kill' to China
Michael Deacon | Here's my free booze plan to save on pensions
Ben Lawrence | Music unites us, so let's stop politicising the Proms
Reader letters | UK lost expertise in nuclear power production
What makes a sports star 'strong'? | Does today's focus on mental health help or hinder?
'I still feel sexy post-50' | 'Why should I stop having fun just because I'm an older woman?'
Great dishwasher debate | Rinse or no rinse? It is time to settle this once and for all
Business and money briefing
Diversity | Public companies with fewer than two female directors out of five will have to give investors an annual statement to explain why. The Financial Conduct Authority has announced new proposals to boost diversity amid claims corporate Britain remains "very male and white".
Fantasy Fund Manager | Still time to join for chance to win £5k
Olympics | Helen Glover said she hoped she had inspired her children to "take risks and to take chances, with no fear of failure" after she and partner Polly Swann narrowly missed out on a medal in the women's coxless pair. On a disappointing night for Team GB, James Wilby was unable to continue the medal rush at the Tokyo Aquatics Centre, fading to finish sixth in a fast 200m breaststroke final. Get the latest from the Games each day with our Olympics Briefing newsletter.
Second Test | Murray warns Lions to expect unexpected
Tottenham | Club set sights on Vlahovic to support Kane
And finally... for this morning's downtime
'Women still don’t feel safe' | 35 years on from Suzy Lamplugh’s disappearance, Suzy Bhaker, the CEO of the Suzy Lamplugh Trust, says much more needs to be done to protect women from stalking. She explains why this must be the decade of change.