Category Archives: Science

Coronavirus live news: British holidaymakers arrive home with minutes to spare before quarantine as Denmark makes face masks compulsory

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Australian death toll stands at 379; France removed from UK travel corridor; Greece and Croatia impose midnight curfew on bars and restaurants

Related: For Manhattan's retail industry normal may never return

It should have been a great year for Spanish wine: a bumper crop of grapes resulting in millions and millions of extra bottles for sipping or swilling at home and abroad.

But with Covid-19 leading to a catastrophic drop in wine sales, the Spanish government is offering growers subsidies to destroy part of this year’s record grape harvest.

Related: Spain’s vineyards destroy record harvest as wine sales crash

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Coronavirus live news: Spain to close nightclubs and ban public smoking; Italy orders testing for some travellers

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Spain announces 11 new measures; Italy move affects travellers from Spain, Croatia, Malta and Greece; India reports over 60,000 new cases

Canada is preparing for a “reasonable worst case scenario” in which further surges of coronavirus cases would at times overwhelm the public health system, officials have said.

In this scenario, there would be a large peak later this year followed by a number of smaller peaks and valleys stretching to January 2022. Each of the peaks would exceed the health system’s capacity.

Hello, my name is Clea Skopeliti and I’ll be running the blog for the next few hours. You can get in touch with me on Twitter @cleaskopeliti or by email: clea.skopeliti.casual@theguardian.com. I won’t always have time to reply to everything but will read it all! Thanks in advance.

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Coronavirus live news: India sees record daily case rise as global deaths near 750,000

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India’s infections grow by nearly 67,000 in one day; Russia vaccine not yet completed its final trials; global deaths climb towards 750,000. Follow the latest updates

Hello everyone. I am taking on the global live feed from London and will be bringing you all the latest updates on what is happening around the globe. Please do keep in touch with me as I work and contact me if you have any questions, news tips or thoughts. Thanks in advance.

Twitter: @sloumarsh
Instagram: sarah_marsh_journalist
Email: sarah.marsh@theguardian.com

That’s it from me, Helen Sullivan, for today. Thanks for following along.

My colleague Sarah Marsh will take you through the next few hours.

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Coronavirus live news: UK adds France to quarantine list from 4am BST on Saturday

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UK move takes effect as of 4am BST on Saturday; Pandemic has killed three quarters of a million people; Germany case jump shows ‘unsettling trend’; Iraq reports record daily Covid-19 cases

Britain’s decision to impose a 14-day quarantine on all arrivals from France will lead to a reciprocal measure, French junior minister for European affairs Clément Beaune said late on Thursday.

“A British decision that we regret and which will lead to a measure of reciprocity, hoping that things will return to normal as soon as possible,” Beaune said on Twitter at midnight.

Une décision britannique que nous regrettons et qui entraînera une mesure de réciprocité, en espérant un retour à la normale le plus rapidement possible @Djebbari_JB https://t.co/6pA0qDQun6

La France regrette la décision du Royaume Uni et appliquera des mesures de réciprocité dans le champ des transports. J’ai dit à mon homologue @grantshapps notre volonté d’harmoniser les protocoles sanitaires pour assurer un haut niveau de protection des deux côtés de la Manche. https://t.co/bH7LkqD3LB

Hi, Helen Sullivan joining you now.

I’ll be bringing you the latest for the next few hours. Get in touch on Twitter @helenrsullivan or via email: helen.sullivan@theguardian.com with questions, comments and news from your part of the world.

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Coronavirus live news: Auckland back in lockdown; Paris marathon cancelled as cases rise

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France cancels marathon as cases pick up; WHO warns displacement of people in Beirut risks accelerating spread; four new cases in Auckland

Jordan will close its only land trade border crossing with Syria for a week after a spike in Covid-19 cases coming from its northern neighbour, officials said.

They said the interior minister’s decision to close the main Jaber border crossing would come into effect on Thursday morning.

Britain’s NatWest is cutting at least 500 jobs across its retail business and closing one of its remaining offices in London as banks press on with cost-cutting in the face of a wave of expected loan losses due to the Covid-19 pandemic.

The state-backed bank is finalising a voluntary redundancy round targeting cutting 550 full-time equivalent roles across its branches and ‘premier banking’ premium service, union Unite told Reuters.

Tens of thousands of people working for banks have risen to the challenge that the pandemic created. The banks’ response should not be a repeat of the austerity measures that we saw after the financial crisis.

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‘They’ve jumped the gun’: scientists worry about Russia’s Covid-19 vaccine

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Rising chorus of concern over Sputnik V vaccine stems from opaque development and lack of mass-testing

In 1977 Scott Halstead, a virologist at the University of Hawaii, was studying dengue fever when he noticed a now well-known but then unexpected feature of the disease.

Animals that had already been exposed to one of the four closely-related viruses that cause dengue and produced antibodies to it, far from being protected against other versions became sicker when infected a second time, and it was the antibodies already produced by the first infection that were responsible, allowing the second infection to hitchhike into the body.

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Covid live news: Lebanon hits record daily cases after blast; Russian vaccine must follow safety procedure, says WHO

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Coronavirus updates: New Zealand records first new local cases in 102 days; global deaths likely to pass 750,000 this week, says WHO

As we reported earlier, the Dutch health minister said he plans to introduce mandatory home quarantine for people identified by local authorities as having been in close contact with somebody infected with coronavirus, and for travellers returning from high-risk countries.

Health minister Hugo de Jonge said in a letter to lawmakers that mandatory quarantine could be imposed if people refuse to isolate voluntarily.

Germany has extended a partial travel warning for Spain to the capital of Madrid and the Basque region due to the Covid-19 pandemic, the foreign ministry said on Tuesday.

The foreign ministry said it was warning against any unnecessary tourist trips to both regions because of a rising number of new infections and local restrictions put in place to contain the spread of coronavirus.

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Powerhouses: nanotechnology turns bricks into batteries

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Research could pave way for cheap supercapacitor storage of renewable energy

The humble house brick has been turned into a battery that can store electricity, raising the possibility that buildings could one day become literal powerhouses.

The new technology exploits the porous nature of fired red bricks by filling the pores with tiny nanofibres of a conducting plastic that can store charge. The first bricks store enough electricity to power small lights. But if their capacity can be increased, they may become a low-cost alternative to the lithium-ion batteries currently used.

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Russia’s coronavirus vaccine: will it work, and is it safe?

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Sputnik V’s development has been marked by worrying opacity and ethical issues

The race to find a vaccine against Covid-19 has not always been particularly edifying, driven at times by so-called “vaccine nationalism”, much cautioned against by the World Health Organization, which has itself been accused of being invested as much in self-interest and prestige as global public health.

Russia’s announcement that it has registered its Sputnik V vaccine as safe and effective for mass production and inoculation even before so-called phase 3 large-scale safety trials, which usually take months, fits the pattern.

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Planet Ceres is an ‘ocean world’ with sea water beneath surface, mission finds

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Dwarf planet, believed to be a barren space rock, has an ‘extensive reservoir’ of brine beneath its surface, images show

The dwarf planet Ceres – long believed to be a barren space rock – is an ocean world with reservoirs of sea water beneath its surface, the results of a major exploration mission showed on Monday.

Ceres is the largest object in the asteroid belt between Mars and Jupiter and has its own gravity, enabling the Nasa Dawn spacecraft to capture high-resolution images of its surface.

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Gene manipulation using algae could grow more crops with less water

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Enhanced photosynthesis holds promise of higher yields in a drought-afflicted future

Tobacco plants have been modified with a protein found in algae to improve their photosynthesis and increase growth, while using less water, in a new advance that could point the way to higher-yielding crops in a drought-afflicted future.

The technique focuses on photosynthesis, the complex process by which plants are able to use sunlight and carbon dioxide to produce nutrients that fuel their growth. Enhancing photosynthesis would produce huge benefits to agricultural productivity, but the complexities of the process have stymied many past attempts to harness it.

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Study links cannabis use during pregnancy to autism risk

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Research suggests 50% greater risk for children whose mothers report using cannabis

Children born to mothers who report using cannabis during pregnancy have about a 50% greater risk of developing autism, research suggests.

While the team behind the work said more research was needed to unpick whether cannabis itself was behind the link, they said the results were concerning.

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Global report: Covid cases worldwide near 20 million as Australia suffers deadliest day

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Cases in Britain rise over 1,000 a day for first time since June; one in every 65 Americans has tested positive; US health secretary praises Taiwan

Five months since the World Health Organization declared the coronavirus crisis a global pandemic, the number of Covid cases globally is nearing 20m, with almost 730,000 known deaths.

The current number of confirmed infections stands at 19,792,519, according to data from Johns Hopkins University, with total new cases daily averaging more than 250,000.

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Coronavirus live news: Greece ‘formally’ in second wave, says expert, as WHO warns Europe to react fast

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World Health Organization says it has received just 10% of funds it needs for Covid fight

India has registered a record 1,007 fatalities in the past 24 hours as new coronavirus infections surged by 62,064 cases, the Associated Press reports.

The health ministry said the total fatalities reached 44,386 on Monday. The number of confirmed cases reported so far are 2,215,074. At least 634,935 patients were still undergoing treatment.

Concern is growing that a resurgence of coronavirus in Europe will lead to a “second wave” of uncoordinated border restrictions that will undermine the open borders on which the European Union is founded.

In a letter to national governments, seen by the Associated Press, the European commission warns that “while we must ensure that the EU is ready for possible resurgences of Covid-19 cases ... we should at the same time avoid a second wave of uncoordinated actions at the internal borders of the EU.”

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What we are learning about Covid-19 and kids

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As schools around the world prepare to reopen, new scientific evidence about children and coronavirus is coming to light

Back in April, the French epidemiologist Arnaud Fontanet found himself leading an investigation in the town of Crépy-en-Valois, a small community of 15,000 inhabitants just to the north-east of Paris. In February, the town’s middle and high schools had become the centre of a new outbreak of Covid-19.

Fontanet and colleagues from the Pasteur Institute in Paris were tasked with conducting antibody testing across Crépy-en-Valois to understand the extent to which the virus had been circulating. As they surveyed the town, they noted an interesting pattern. While the virus had spread rampantly through the high school, with 38% of students being infected, along with 43% of teachers and 59% of non-teaching staff, the same was not true for the town’s six primary schools. While three primary-age pupils had caught Covid-19 in early February, none of these infections had led to a secondary case. Overall, just 9% of primary age pupils, 7% of teachers and 4% of non-teaching staff had been infected with the virus.

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Nasa to change ‘harmful’ and insensitive’ planet and galaxy nicknames

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Space agency says ‘certain cosmic nicknames are insensitive’ and vows to drop any reference to them

Nasa has signaled it is joining the social justice movement by changing unofficial and potentially contentious names used by the scientific community for distant cosmic objects and systems such as planets, galaxies and nebulae.

In a statement last week, the space agency said that as the “community works to identify and address systemic discrimination and inequality in all aspects of the field, it has become clear that certain cosmic nicknames are not only insensitive, but can be actively harmful”.

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Listen to your migraine to help you feel better – and to learn about yourself

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Headaches are telling you something about how your brain works with your body, influencing your behaviour and feelings

We need pain. It seems contradictory to say it, particularly now that we have so many ways of dealing with it and switching it off. Pain not only tells us something is wrong, it also protects us. If you slam the car door on your hand, it’s going to hurt. You will have damaged the soft tissue; all the muscles and ligaments that help you move your fingers. It will no doubt swell up to twice its size. This inflammation is part of the healing process. Your hand feels hot and looks red because of all the extra blood flow. All these inflammatory agents that are acting to heal you are stimulating the pain receptors in your hand, the ones in your skin and your muscles. Your head is not so different except, crucially, the underlying cause can be much more subtle and varied.

As a neuroscientist who writes about headaches, it is somewhat ironic to admit that I suffer from them still. Two recent headaches stand out. The first happened when I couldn’t find my glasses. I’m astigmatic so I see the world on a bit of a slant because my left eyeball is shaped like a rugby ball instead of a football. Just looking around can be effortful. Plus, the search made me late for everything that day which was unpleasant. By the time I got home, my head felt like it was in the grip of giant hands and they had begun to squeeze hard. All I wanted for dinner was a paracetamol sandwich.

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Coronavirus Australia: Victoria reports 466 new cases and 12 deaths, including second man in his 30s

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Victorian premier Daniel Andrews says number of mystery Covid-19 cases has risen by 130 as nine new infections announced in NSW

A man in his 30s and six aged care residents are among 12 new Victorian Covid-19 deaths that have taken Australia’s coronavirus death toll to 278.

On Saturday, the Victorian premier, Daniel Andrews, announced a further 466 cases of coronavirus in the state. Andrews said the number of cases attributed to no known source had risen by 130 to 2,584.

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‘The virus piggybacked on racism’: why did Covid-19 hit BAME families so hard?

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Ida lost two brothers in 10 days, and Ken’s teenage sweetheart died at 44. Now, they’re looking for answers

Sir Oyaseh Ivowi sits in front of a poster of two of his three boys. Olume, the older brother, hovers over Isi; both wear traditional Nigerian dress. Underneath are the words: “Gone too soon, but not forgotten. Olume Godfrey Ivowi, 7 November 1973 to 10 April 2020. Isi Benjamin Emitsemu Ivowi, 17 November 1985 to 19 April 2020.”

Olume, 46, and Isi, 34, died in Luton and Milton Keynes respectively. Their passing made headlines because it was so shocking: two brothers killed by Covid-19 in such a short space of time. A third brother, Osi, also caught the virus, but has recovered.

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Coronavirus live news: UK recalls home tests over safety concerns as Indian health workers strike

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Ten of thousands demand better pay and protection as cases rise in the Philippines, Greece and Italy

Hi, it’s Aaron Walawalkar here in London, picking up the blog from my colleague Damien Gayle.

Please get in touch with any suggestions for coverage, or comments by DM on Twitter @AaronWala or by email at aaron.walawalkar@theguardian.com.

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