Ireland suspends AstraZeneca Covid vaccine over blood clot concerns

Deployment of Oxford vaccine temporarily deferred after latest reports from Norway

Ireland is suspending use of the Oxford/AstraZeneca coronavirus vaccine as a precautionary measure following further reports of blood clots in people who have received it, this time from Norway.

The deputy chief medical officer, Dr Ronan Glynn, said Ireland’s advisory body on vaccines had recommended that deployment of the AstraZeneca jab should be “temporarily deferred” with immediate effect. He stressed, though, that there was no proof that the vaccine had caused blood clots.

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‘The ketamine blew my mind’: can psychedelics cure addiction and depression?

This week sees the opening of the first UK high-street clinic offering psychedelic-assisted therapy. Could popping psilocybin be the future of mental healthcare?

In the summer of 1981, when he was 13, Grant crashed a trail motorbike into a wall at his parents’ house in Cambridgeshire. He’d been hiding it in the shed, but “it was far too powerful for me, and on my very first time starting it in the garden, I smashed it into a wall”. His mother came outside to find the skinny teenager in a heap next to the crumpled motorbike. “I was in a lot of trouble.”

Grant hadn’t given this childhood memory much thought in the intervening years, but one hot August day in 2019, it came back to him with such clarity that, at 53, now a stocky father of two, he suddenly understood it as a clue to his dangerously unhealthy relationship with alcohol.

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Trump coronavirus coordinator, Deborah Birx, takes job at air purifier business

Birx, who was criticised for not standing up to Trump over Covid, takes job with Texas company that says its purifiers clean virus from the air

Dr Deborah Birx, the former Trump White House coronavirus taskforce coordinator, is taking a private sector job, joining a Texas manufacturer that says its purifiers clean Covid-19 from the air within minutes and from surfaces within hours.

Birx will join Dallas-based ActivePure as chief scientific and medical adviser, she and the company said on Friday.

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Scientists may have solved ancient mystery of ‘first computer’

Researchers claim breakthrough in study of 2,000-year-old Antikythera mechanism, an astronomical calculator found in sea

From the moment it was discovered more than a century ago, scholars have puzzled over the Antikythera mechanism, a remarkable and baffling astronomical calculator that survives from the ancient world.

The hand-powered, 2,000-year-old device displayed the motion of the universe, predicting the movement of the five known planets, the phases of the moon and the solar and lunar eclipses. But quite how it achieved such impressive feats has proved fiendishly hard to untangle.

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China and Russia unveil joint plan for lunar space station

Russian space agency Roscomos and Chinese counterpart CNSA to develop research facilities on surface of moon or in its orbit

Russia and China have unveiled plans for a joint lunar space station, with the Russian space agency Roscomos saying it has signed an agreement with China’s National Space Administration (CNSA) to develop a “complex of experimental research facilities created on the surface and/or in the orbit of the moon”.

The CNSA, for its part, said the project was “open to all interested countries and international partners” in what experts said would be China’s biggest international space cooperation project to date.

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Medieval women ‘put faith in birth girdles’ to protect them during childbirth

New findings cement idea that ritual and religion was invoked using talismans to soothe nerves

With sky-high levels of maternal mortality, the science of obstetrics virtually nonexistent and the threat of infectious disease always around the corner, pregnant medieval women put their faith in talismans to bring them divine protection during childbirth.

From amulets to precious stones, the list of items that the church lent to pregnant women was substantial, but the most popular lucky charm was a “birthing girdle”.

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The UN food systems summit will consider all stakeholders’ interests | Letter

Dr Agnes Kalibata responds to a report on the 2021 summit that she is leading as a special envoy for the UN secretary general

As you note in your article (Farmers and rights groups boycott food summit over big business links, 4 March), farmers have for too long been on the fringes of global discussions about hunger, poverty and climate change, despite being the frontline of our food systems and the custodians of our natural resources.

The UN food systems summit marks a momentous opportunity for farmers, producers and many others who support them to be at the heart of the year-long consultative process that has been launched to improve our shared food system.

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Vitamin D supplements may offer no Covid benefits, data suggests

Two studies fail to find evidence to support claims supplements protect against coronavirus

The idea that vitamin D supplements can reduce susceptibility to, and the severity of, Covid-19 is seductive – it offers a simple, elegant solution to a very complex and lethal problem. But analyses encompassing large European datasets suggest the enthusiasm for the sunshine vitamin may be misplaced.

Two still to be peer-reviewed papers looked at the link between vitamin D levels and Covid-19 and both reached the same conclusion: evidence for a direct link between vitamin D deficiency and Covid outcomes is lacking.

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Global heating pushes tropical regions towards limits of human livability

Rising heat and humidity threatening to plunge much of the world’s population into potentially lethal conditions, study finds

The climate crisis is pushing the planet’s tropical regions towards the limits of human livability, with rising heat and humidity threatening to plunge much of the world’s population into potentially lethal conditions, new research has found.

Related: 'It is the question of the century': will tech solve the climate crisis – or make it worse?

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Coronavirus live news: death toll in Italy goes past 100,000; vaccinated people can meet indoors, says US

Italian PM reiterates pledge to speed up the vaccination programme; fully-vaccinated Americans can meet indoors without social distancing or masks

Here the latest key developments at a glance:

More than half of secondary schools and colleges in England have seen nearly all their students opt in for voluntary on-site coronavirus tests as they returned to class, a survey suggests.

PA reports:

Nearly three in four (73%) secondary school heads said more than 90% of pupils had complied with face covering policies in classrooms, according to the snap poll by the Association of School and College Leaders (ASCL).

But some heads reported lower compliance with masks, with 2% saying it was below 70%.

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Face masks safe to use during intense exercise, research suggests

‘Limited’ cardiology research also shows mask wearing likely to reduce spread of coronavirus in indoor gyms

Face masks can be worn safely during intense exercise, and could reduce the risk of Covid-19 spreading at indoor gyms, preliminary findings suggests.

Scientists from the Monzino Cardiology Centre (CCM) in Milan and the University of Milan tested the breathing rate, heart rate, blood pressure and oxygen levels of six women and men on exercise bikes, with and without a mask.

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Kathleen Folbigg: how genetics could lead to a pardon for ‘Australia’s worst female serial killer’

She has always maintained her four children died of natural causes. Now 90 scientists argue she may be right

Leading scientific experts are petitioning for the pardon of the woman dubbed Australia’s worst female serial killer, arguing that all four of her children had rare genetic conditions that could explain their deaths.

Kathleen Folbigg is in jail for killing her children as infants between 1990 and 1999.

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The epic battle with cancer’s ‘Death Star’

Forty years after the mutant genes that cause the deadliest cancers were discovered, drugs that target them could be approved

In the early 1980s, Channing Der was just beginning his career as a scientist at Harvard Medical School when he happened upon a discovery that would change the course of cancer research. At the time, the holy grail of cancer biology was discovering so-called oncogenes – genetic switches that can turn a normal cell into a cancer cell – in the genomes of tumours. But while teams of scientists had thrown everything at it for the best part of a decade, their efforts had proved fruitless. One by one, they were beginning to accept that it might be a dead end.

Der found himself assigned to test 20 different genes that had been identified as possible oncogene candidates. His question was simple: did any of them actually exist in tumours in a form that was different from normal cells?

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Coronavirus live news: UK still not out of the woods, expert says; Dalai Lama gets first Covid vaccine dose

Contradictory death figures in Russia; WHO warns against relaxing guard due to vaccines

India’s federal government has asked local authorities to prioritise vaccinations in several districts of eight states, including New Delhi, that have seen a spike in coronavirus cases in recent weeks.

Reuters reports:

More than 60 districts across New Delhi, Haryana, Andhra Pradesh, Odisha, Himachal Pradesh, Uttarakhand, Goa and Chandigarh, “continue to be of concern”, the government said.

“These districts are seeing a decrease in total tests being conducted, low share of (tests), increase in weekly positivity and low number of contact tracing of the COVID positive cases,” it added, citing a risk of transmission to neighbouring regions.

More than 1,000 people in north-east England have been checked for coronavirus in the first day of surge testing after a variant from South Africa was discovered in their area.

The BBC reports that everyone aged over 16 living in Stockton’s TS19 postcode area was being urged to get tested even if asymptomatic. The local council said the variant was “more infectious” and cases needed to be identified “as quickly as possible”. Early studies indicate that this variant could be much more resistant to vaccines than the original strain.

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From Pfizer to Moderna: who’s making billions from Covid-19 vaccines?

The companies in line for the biggest gains – and the shareholders who have already made fortunes

The arrival of Covid-19 vaccines promises a return to more normal life – and has created a global market worth tens of billions of dollars in annual sales for some pharmaceutical companies.

Among the biggest winners will be Moderna and Pfizer – two very different US pharma firms which are both charging more than $30 per person for the protection of their two-dose vaccines. While Moderna was founded just 11 years ago, has never made a profit and employed just 830 staff pre-pandemic, Pfizer traces its roots back to 1849, made a net profit of $9.6bn last year and employs nearly 80,000 staff.

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‘It is the question of the century’: will tech solve the climate crisis – or make it worse?

Robots on coral reefs, vast barriers to hold back the glaciers, simulated volcanic eruptions to offset global heating ... Can technology repair the mess we have made? Elizabeth Kolbert is not convinced

Elizabeth Kolbert’s favourite movie is the end-of-the-world comedy Dr Strangelove or: How I Learned to Stop Worrying and Love the Bomb. For those who need a quick recap, this cold war film features a deranged US air force general who orders a nuclear attack on the Soviet Union using weapons developed by a mad Nazi scientist played by Peter Sellers. A last-minute glitch almost forestalls an apocalyptic war, but a gung-ho B-52 pilot has other ideas. He opens the bomb doors and mounts the H-bomb as if it were a horse, waving his hat and whooping as he rides the missile towards the world’s oblivion. No heroism could be more misguided. No movie could end with a blunter message: how on Earth can we humans trust ourselves with planet-altering technology?

The same absurdly serious question lies at the heart of Kolbert’s new book, Under a White Sky. The Sixth Extinction, her previous book, won a Pulitzer prize for its investigation into how mankind has devastated the natural world. Now she has widened her gaze to whether we can remedy this with ingenious technological fixes – or make things worse. “There was definitely a question left hanging: now we have become such a dominant force on planet Earth, and created so many problems through our intervention, what happens next?”, she says.

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Perseverance Mars rover: Nasa releases first-drive review

Vehicle had no problem going 6.5 metres, turning and backing up, then photographed its own wheel marks on planet’s surface

Nasa’s Mars rover Perseverance has taken a short drive two weeks after touching down, mission managers have said.

The six-wheeled, car-sized probe went 6.5 metres (21.3 feet) during a half-hour test within Jezero crater, an ancient lake bed and river delta.

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Walker ‘stunned’ to see ship hovering high above sea off Cornwall

David Morris encounters rare optical illusion known as superior mirage while out on coastal stroll

There are only so many polite words that come to mind when one spots a ship apparently hovering above the ocean during a stroll along the English coastline.

David Morris, who captured the extraordinary sight on camera, declared himself “stunned” when he noticed a giant tanker floating above the water as he looked out to sea from a hamlet near Falmouth in Cornwall.

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Astronomically hard: French stargazers hunt for meteorite the size of apricot

The space debris was spotted falling to Earth near Bordeaux but astronomer admits to ‘needle in a haystack’ search

France’s ranks of amateur astronomers have been urged to help find an apricot-size meteorite that fell to Earth last weekend in the south-west of the country.

The rock, estimated to weigh 150 grams (just over five ounces), was captured plunging through the atmosphere by cameras at an astronomy education facility in Mauraux, and landed at exactly 10.43pm on Saturday near Aiguillon, about 100km (62 miles) from Bordeaux.

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Farmers and rights groups boycott food summit over big business links

Focus on agro-business rather than ecology has split groups invited to planned UN conference on hunger

An international food summit to address growing hunger and diet-related disease is in disarray as hundreds of farmers’ and human rights groups are planning a boycott.

Related: 'A shame for the world': Uganda's fragile forest ecosystem destroyed for sugar

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