The rapid spread of the Delta coronavirus variant first identified in India has driven a 50 per cent rise in infections in England since May, a large study led by Imperial College London found on Thursday.
The government said the data supported Mr Johnson's decision to delay the end of Covid-19 restrictions in England to July 19, given the threat of the Delta variant and the need to vaccinate more people.
The latest round of the React-1 survey, conducted between May 20 and June 7, found prevalence was 0.15 per cent, compared to 0.10 per cent in the last set of data from late April to early May.
"Prevalence is increasing exponentially, driven by younger ages ... and it appears to be doubling every 11 days. Clearly, that is bad news," said Steven Riley, professor of infectious disease dynamics at Imperial College London.
The study is one of the largest prevalence surveys in Britain, with 109,000 volunteers tested in its latest round.
Prof Riley said Britain's high vaccination levels made it hard to predict how long that exponential growth would last, and that the rapid introduction of vaccine doses to younger age groups should slow it down.
More than half of the adult population of Britain have received two vaccine doses, and more than three quarters of adults have received at least one.
Although the Delta variant is shown to substantially reduce the effectiveness of one dose of vaccine against mild infection, two doses still provide good protection against severe disease, early evidence has shown.
"These findings highlight the stark context in which we took the difficult decision to delay Step 4 of the roadmap out of lockdown," health minister Matt Hancock said.
"We all must hold our nerve that little bit longer as our vaccine roll-out continues."
COMPANY%20PROFILE
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It Was Just an Accident
Director: Jafar Panahi
Stars: Vahid Mobasseri, Mariam Afshari, Ebrahim Azizi, Hadis Pakbaten, Majid Panahi, Mohamad Ali Elyasmehr
Rating: 4/5
Champions League Last 16
Red Bull Salzburg (AUT) v Bayern Munich (GER)
Sporting Lisbon (POR) v Manchester City (ENG)
Benfica (POR) v Ajax (NED)
Chelsea (ENG) v Lille (FRA)
Atletico Madrid (ESP) v Manchester United (ENG)
Villarreal (ESP) v Juventus (ITA)
Inter Milan (ITA) v Liverpool (ENG)
Paris Saint-Germain v Real Madrid (ESP)
Company%20profile
%3Cp%3E%3Cstrong%3EName%3A%20%3C%2Fstrong%3EEmonovo%20(previously%20Marj3)%0D%3Cbr%3E%3Cstrong%3EBased%3A%20%3C%2Fstrong%3ECairo%0D%3Cbr%3E%3Cstrong%3ELaunch%20year%3A%20%3C%2Fstrong%3E2016%0D%3Cbr%3E%3Cstrong%3ENumber%20of%20employees%3A%20%3C%2Fstrong%3E12%0D%3Cbr%3E%3Cstrong%3ESector%3A%20%3C%2Fstrong%3Eeducation%20technology%0D%3Cbr%3E%3Cstrong%3EFunding%3A%20%3C%2Fstrong%3Ethree%20rounds%2C%20undisclosed%20amount%3C%2Fp%3E%0A
The specs: 2018 Chevrolet Trailblazer
Price, base / as tested Dh99,000 / Dh132,000
Engine 3.6L V6
Transmission: Six-speed automatic
Power 275hp @ 6,000rpm
Torque 350Nm @ 3,700rpm
Fuel economy combined 12.2L / 100km
The specs: Macan Turbo
Engine: Dual synchronous electric motors
Power: 639hp
Torque: 1,130Nm
Transmission: Single-speed automatic
Touring range: 591km
Price: From Dh412,500
On sale: Deliveries start in October
Infiniti QX80 specs
Engine: twin-turbocharged 3.5-liter V6
Power: 450hp
Torque: 700Nm
Price: From Dh450,000, Autograph model from Dh510,000
Available: Now
11 cabbie-recommended restaurants and dishes to try in Abu Dhabi
Iqbal Restaurant behind Wendy’s on Hamdan Street for the chicken karahi (Dh14)
Pathemari in Navy Gate for prawn biryani (from Dh12 to Dh35)
Abu Al Nasar near Abu Dhabi Mall, for biryani (from Dh12 to Dh20)
Bonna Annee at Navy Gate for Ethiopian food (the Bonna Annee special costs Dh42 and comes with a mix of six house stews – key wet, minchet abesh, kekel, meser be sega, tibs fir fir and shiro).
Al Habasha in Tanker Mai for Ethiopian food (tibs, a hearty stew with meat, is a popular dish; here it costs Dh36.75 for lamb and beef versions)
Himalayan Restaurant in Mussaffa for Nepalese (the momos and chowmein noodles are best-selling items, and go for between Dh14 and Dh20)
Makalu in Mussaffa for Nepalese (get the chicken curry or chicken fry for Dh11)
Al Shaheen Cafeteria near Guardian Towers for a quick morning bite, especially the egg sandwich in paratha (Dh3.50)
Pinky Food Restaurant in Tanker Mai for tilapia
Tasty Zone for Nepalese-style noodles (Dh15)
Ibrahimi for Pakistani food (a quarter chicken tikka with roti costs Dh16)
ALRAWABI%20SCHOOL%20FOR%20GIRLS
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TERMINAL HIGH ALTITUDE AREA DEFENCE (THAAD)
What is THAAD?
It is considered to be the US's most superior missile defence system.
Production:
It was created in 2008.
Speed:
THAAD missiles can travel at over Mach 8, so fast that it is hypersonic.
Abilities:
THAAD is designed to take out ballistic missiles as they are on their downward trajectory towards their target, otherwise known as the "terminal phase".
Purpose:
To protect high-value strategic sites, such as airfields or population centres.
Range:
THAAD can target projectiles inside and outside the Earth's atmosphere, at an altitude of 150 kilometres above the Earth's surface.
Creators:
Lockheed Martin was originally granted the contract to develop the system in 1992. Defence company Raytheon sub-contracts to develop other major parts of the system, such as ground-based radar.
UAE and THAAD:
In 2011, the UAE became the first country outside of the US to buy two THAAD missile defence systems. It then stationed them in 2016, becoming the first Gulf country to do so.
The schedule
December 5 - 23: Shooting competition, Al Dhafra Shooting Club
December 9 - 24: Handicrafts competition, from 4pm until 10pm, Heritage Souq
December 11 - 20: Dates competition, from 4pm
December 12 - 20: Sour milk competition
December 13: Falcon beauty competition
December 14 and 20: Saluki races
December 15: Arabian horse races, from 4pm
December 16 - 19: Falconry competition
December 18: Camel milk competition, from 7.30 - 9.30 am
December 20 and 21: Sheep beauty competition, from 10am
December 22: The best herd of 30 camels
Sreesanth's India bowling career
Tests 27, Wickets 87, Average 37.59, Best 5-40
ODIs 53, Wickets 75, Average 33.44, Best 6-55
T20Is 10, Wickets 7, Average 41.14, Best 2-12
OPINIONS ON PALESTINE & ISRAEL
More from Rashmee Roshan Lall
SECRET%20INVASION
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The specs: 2018 Nissan Altima
Price, base / as tested: Dh78,000 / Dh97,650
Engine: 2.5-litre in-line four-cylinder
Power: 182hp @ 6,000rpm
Torque: 244Nm @ 4,000rpm
Transmission: Continuously variable tranmission
Fuel consumption, combined: 7.6L / 100km
Pathaan
%3Cp%3E%3Cstrong%3EDirector%3A%3C%2Fstrong%3E%20Siddharth%20Anand%C2%A0%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EStars%3A%3C%2Fstrong%3E%20Shah%20Rukh%20Khan%2C%20Deepika%20Padukone%2C%20John%20Abraham%C2%A0%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3ERating%3A%3C%2Fstrong%3E%203%2F5%3C%2Fp%3E%0A