The number of coronavirus cases in the UK reached a two-month high on Friday, as numbers of the Indian variant continue to grow rapidly.
This prompted calls from experts for caution and less contradictory government guidance.
The professor whose advice contributed to England's first lockdown in 2020 told The Guardian the downside of being "a bit more cautious" was a lot smaller than the downside of getting it wrong.
If restrictions are lifted too fast, the situation could worsen "very, very quickly", said Sir Tim Gowers, professor of mathematics at the University of Cambridge.
Government figures on Friday showed that another 4,182 new confirmed Covid-19 cases were reported across the UK.
This was the highest daily figure since April 1, when 4,478 cases were recorded.
The cases bring the total number of confirmed infections reported over the past seven days to 20,765 – a 24 per cent increase from the previous week.
Data also showed the Indian variant is now the dominant strain in the UK, and its exponential growth threatens June 21, the date when all legal Covid restrictions in England are set to expire.
The Times reported on Saturday that the government is considering extending guidance on wearing face coverings and working from home beyond June 21.
However, this approach was called confusing by a leading behavioural scientist.
The government is "beginning to act in a rather contradictory way", Prof Stephen Reicher, a psychologist at the University of St Andrews who serves on the Sage group of scientific advisers, told the BBC on Saturday.
"They're saying to us, for instance on travel: 'You can travel internationally but please don't.'
"They say of social contact: 'You can hug, but please don't hug.' They say of restrictions: 'No restrictions but please don't go in and out of the hotspots.'
"That contradiction, that sense of confusion, I think is undermining the response," Mr Reicher said.
He also said the government appeared to have reneged on its commitment to be guided by data not dates.
Mr Gowers agreed, highlighting UK Prime Minister Boris Johnson's rhetoric.
“Because [he] has made a big thing about all the steps being irreversible, I think he’s put himself in a position where once he takes a step, he’ll be extremely reluctant to reverse, because that would be a big U-turn, an embarrassing climbdown,” he said.
“So I think if that’s the way you’re going to play things, then you should be very, very cautious about every step you take … And maybe everything [will] be OK, maybe the number of people who are vaccinated will be just enough … ‘R’ [a way of rating a disease's ability to spread] will, broadly speaking, stay below one even with Indian variants.
“But if it’s not OK, we know, because of mathematics, that things will get bad very, very quickly. Or at least, maybe it won’t look that quick to start with, but it’ll grow exponentially," Mr Gowers said.
“So it’ll pick up speed and become a big problem.”
New schools in Dubai
HWJN
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Zakat definitions
Zakat: an Arabic word meaning ‘to cleanse’ or ‘purification’.
Nisab: the minimum amount that a Muslim must have before being obliged to pay zakat. Traditionally, the nisab threshold was 87.48 grams of gold, or 612.36 grams of silver. The monetary value of the nisab therefore varies by current prices and currencies.
Zakat Al Mal: the ‘cleansing’ of wealth, as one of the five pillars of Islam; a spiritual duty for all Muslims meeting the ‘nisab’ wealth criteria in a lunar year, to pay 2.5 per cent of their wealth in alms to the deserving and needy.
Zakat Al Fitr: a donation to charity given during Ramadan, before Eid Al Fitr, in the form of food. Every adult Muslim who possesses food in excess of the needs of themselves and their family must pay two qadahs (an old measure just over 2 kilograms) of flour, wheat, barley or rice from each person in a household, as a minimum.
The National's picks
4.35pm: Tilal Al Khalediah
5.10pm: Continous
5.45pm: Raging Torrent
6.20pm: West Acre
7pm: Flood Zone
7.40pm: Straight No Chaser
8.15pm: Romantic Warrior
8.50pm: Calandogan
9.30pm: Forever Young
The stats
Ship name: MSC Bellissima
Ship class: Meraviglia Class
Delivery date: February 27, 2019
Gross tonnage: 171,598 GT
Passenger capacity: 5,686
Crew members: 1,536
Number of cabins: 2,217
Length: 315.3 metres
Maximum speed: 22.7 knots (42kph)
Book%20Details
%3Cp%3E%3Cem%3EThree%20Centuries%20of%20Travel%20Writing%20by%20Muslim%20Women%3C%2Fem%3E%3Cbr%3E%3Cstrong%3EEditors%3A%20%3C%2Fstrong%3ESiobhan%20Lambert-Hurley%2C%20Daniel%20Majchrowicz%2C%20Sunil%20Sharma%3Cbr%3E%3Cstrong%3EPublisher%3A%20%3C%2Fstrong%3EIndiana%20University%20Press%3B%20532%20pages%3Cbr%3E%3C%2Fp%3E%0A
Groom and Two Brides
Director: Elie Semaan
Starring: Abdullah Boushehri, Laila Abdallah, Lulwa Almulla
Rating: 3/5
Alan%20Wake%20Remastered%20
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Profile of Hala Insurance
Date Started: September 2018
Founders: Walid and Karim Dib
Based: Abu Dhabi
Employees: Nine
Amount raised: $1.2 million
Funders: Oman Technology Fund, AB Accelerator, 500 Startups, private backers
Jewel of the Expo 2020
252 projectors installed on Al Wasl dome
13.6km of steel used in the structure that makes it equal in length to 16 Burj Khalifas
550 tonnes of moulded steel were raised last year to cap the dome
724,000 cubic metres is the space it encloses
Stands taller than the leaning tower of Pisa
Steel trellis dome is one of the largest single structures on site
The size of 16 tennis courts and weighs as much as 500 elephants
Al Wasl means connection in Arabic
World’s largest 360-degree projection surface
Who's who in Yemen conflict
Houthis: Iran-backed rebels who occupy Sanaa and run unrecognised government
Yemeni government: Exiled government in Aden led by eight-member Presidential Leadership Council
Southern Transitional Council: Faction in Yemeni government that seeks autonomy for the south
Habrish 'rebels': Tribal-backed forces feuding with STC over control of oil in government territory
THE BIO
Favourite author - Paulo Coelho
Favourite holiday destination - Cuba
New York Times or Jordan Times? NYT is a school and JT was my practice field
Role model - My Grandfather
Dream interviewee - Che Guevara