Sinovac COVID-19 Shot with Pfizer Booster Less Effective against Omicron, Finds Study

A staff member holds a QR code for the “LeaveHomeSafe” COVID-19 contact-tracing app to people lining up outside a community vaccination center providing Sinovac Biotech's CoronaVac COVID-19 vaccine in Hong Kong, China December 2, 2021. (Reuters)
A staff member holds a QR code for the “LeaveHomeSafe” COVID-19 contact-tracing app to people lining up outside a community vaccination center providing Sinovac Biotech's CoronaVac COVID-19 vaccine in Hong Kong, China December 2, 2021. (Reuters)
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Sinovac COVID-19 Shot with Pfizer Booster Less Effective against Omicron, Finds Study

A staff member holds a QR code for the “LeaveHomeSafe” COVID-19 contact-tracing app to people lining up outside a community vaccination center providing Sinovac Biotech's CoronaVac COVID-19 vaccine in Hong Kong, China December 2, 2021. (Reuters)
A staff member holds a QR code for the “LeaveHomeSafe” COVID-19 contact-tracing app to people lining up outside a community vaccination center providing Sinovac Biotech's CoronaVac COVID-19 vaccine in Hong Kong, China December 2, 2021. (Reuters)

Sinovac's two-dose COVID-19 vaccine followed by a booster Pfizer-BioNTech shot showed a lower immune response against the Omicron variant compared with other strains, according to a study by researchers.

The study, which has not been peer-reviewed yet, was conducted by researchers from Yale University, the Dominican Republic's Ministry of Health and other institutions.

The Sinovac two-dose regimen along with the Pfizer shot produced an antibody response similar to a two-dose mRNA vaccine, according to the study. Antibody levels against Omicron were 6.3-fold lower when compared with the ancestral variant and 2.7-fold lower when compared with Delta.

Akiko Iwasaki, one of the authors of the study, said on Twitter that CoronaVac recipients may need two additional booster doses to achieve protective levels needed against Omicron.

The two-dose Sinovac vaccine alone did not show any detectable neutralization against Omicron, according to the study that analyzed plasma samples from 101 participants in the Dominican Republic.

A study from Hong Kong last week said that even three doses of the Sinovac vaccine did not produce enough antibody response against Omicron and that it had to be boosted by a Pfizer-BioNTech shot to achieve "protective levels."

Sinovac's CoronaVac and state-owned Sinopharm's BBIBP-CorV vaccine are the two most-used vaccines in China and the leading COVID-19 shots exported by the country. Hong Kong has been using the Sinovac and Pfizer-BioNTech vaccines.



Egg-free School Meals Scramble Politics in India

Students queue to receive lunch at a government-run primary school in Kolkata, India. Dibyangshu SARKAR / AFP
Students queue to receive lunch at a government-run primary school in Kolkata, India. Dibyangshu SARKAR / AFP
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Egg-free School Meals Scramble Politics in India

Students queue to receive lunch at a government-run primary school in Kolkata, India. Dibyangshu SARKAR / AFP
Students queue to receive lunch at a government-run primary school in Kolkata, India. Dibyangshu SARKAR / AFP

Teacher Raja Dey fears attendance might drop now that government-run schools have stopped serving eggs for lunch in his eastern Indian state, a dietary change that has stirred a political storm.

The humble egg, a popular food in West Bengal, was taken off the menu after the state's recently elected Hindu nationalist government said a religious charity will provide free, vegetarian cooked meals in state-run schools.

The new arrangement has rekindled a long-running debate over food, faith and nutrition in the world's most populous country, with critics accusing the government of trying to turn schoolchildren vegetarian, said AFP.

Prime Minister Narendra Modi's party, which swept to power in West Bengal for the first time in regional elections held in May, often promotes vegetarianism as a part of its nationalist agenda, although most Indian Hindus eat meat and fish.

Eggs, which Hindus generally consider non-vegetarian, are even more widely consumed.

Former West Bengal chief minister Mamata Banerjee, whose regional Trinamool Congress (TMC) lost May's vote after 15 years in power, has denounced the move to remove eggs from school meals as going "against the culture" of the state, home to more than 100 million people.

"The BJP government is trying to impose vegetarianism on school children," TMC lawmaker Dola Sen told AFP.

Some teachers have expressed concerns over attendance rates as well as good nutrition.

"The mid-day meals have been one of the biggest attractions in state-run primary schools," teacher Dey told AFP.

- World's largest school lunch scheme -

While there is no nationwide data linking eggs to attendance in government-run schools, Dey said that "students turn up in large numbers on days when eggs are provided".

In the southern state of Karnataka, official figures from last year showed that attendance rose from 93.5 to 98.97 percent after egg distribution had been expanded to six days a week.

In West Bengal, eggs, previously served once a week, were replaced last month with plant-based alternatives as the state government tapped the International Society for Krishna Consciousness (ISKCON) -- commonly known as the Hare Krishna movement -- as the new provider of school meals.

ISKCON is the leading provider of India's school lunches -- the largest such program in the world, according to the UN -- and serves only vegetarian food.

The lunch scheme is widely acknowledged to have improved enrolment rates across the country, with multiple peer-reviewed research papers identifying an increase of up to 15 percent.

There are also nutritional benefits.

A 2021 report by the International Food Policy Research Institute found that the scheme has played a key role in reducing stunting among Indian children.

With eggs off the menu, public health advocates have warned that children from poor families -- the primary target of the lunch scheme -- could lose an important source of protein and other nutrients.

- 'Gold standard' -

ISKCON has pushed back, arguing that soya chunks, cottage cheese and lentils were as nutritious.

"We will ensure that whatever nutrients a child gets from eggs will be matched or exceeded by superior quality protein and vitamins in our meals," Surovijoy Govinda Das, a senior member of ISKCON, told AFP.

The state's education minister, Dipak Barman, said that "there are many people in our country who lead a healthy life on a vegetarian diet."

Some nutritionists beg to differ.

Eggs are "the gold standard for protein quality", Sylvia Karpagam, a community health physician, told Frontline magazine.

Without "fact-based information... the country faces a looming crisis in nutrition and health outcomes", she said.

In the run-up to May's vote, TMC party members had accused Modi's BJP of seeking to ban fish and meat altogether.

The ruling party denied any such intention, but last month's menu change has revived concerns.

The matter has made it to the High Court, which has asked the state to clarify its position on handing over the lunch scheme to ISKCON. A hearing is slated for next month.


Fontainebleau: French Forest of Kings, Painters and Hikers

 A drone view from Milly-la-Foret shows smoke rising from a wildfire in the Fontainebleau forest near Paris during a heatwave affecting large parts of France, July 13, 2026. (Reuters)
A drone view from Milly-la-Foret shows smoke rising from a wildfire in the Fontainebleau forest near Paris during a heatwave affecting large parts of France, July 13, 2026. (Reuters)
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Fontainebleau: French Forest of Kings, Painters and Hikers

 A drone view from Milly-la-Foret shows smoke rising from a wildfire in the Fontainebleau forest near Paris during a heatwave affecting large parts of France, July 13, 2026. (Reuters)
A drone view from Milly-la-Foret shows smoke rising from a wildfire in the Fontainebleau forest near Paris during a heatwave affecting large parts of France, July 13, 2026. (Reuters)

A massive wildfire near Paris has torched swathes of a forest that has lured admirers for centuries, from royal hunting parties to impressionist painters, rock climbers and nature lovers.

Fontainebleau is no stranger to fire but this inferno -- fanned by strong winds and heatwave conditions -- is among the worst in decades, destroying nearly five percent of the 25,000-hectare (61,800 acre) forest.

- Prehistory and royalty -

Fontainebleau attracts between 15 and 18 million visitors a year -- nearly twice as many as the Louvre museum in Paris.

Most travel from the French capital 60 kilometers (40 miles) away but 30 percent come from outside France.

Rock art dating back to prehistoric times has been discovered in its caves.

Fontainebleau became a royal estate around the year 1000 under Robert II "the Pious" of France. Later, a grand palace was built to host hunting parties.

The hunting paths are still used today by firefighters to access the forest, said Sophie David, an archaeologist who heads the environment and visitor services department at the state-run National Forestry Office.

- Blank canvas -

Around 200 years ago, swathes of the forest had been cleared for agriculture, reducing it to roughly one-third of its current size.

"In the 19th century, trees were planted to fill in the gaps. Pines were chosen, trees with shallow roots" capable of growing in Fontainebleau's sandy soil, said David.

The character of this new, more open forest was captured by the painters of the Barbizon Impressionist school.

The invention of the paint tube, and rise of leisure travel among France's growing bourgeoisie, helped make Fontainebleau attractive for walkers and artists.

"The railway arrived in 1849 and the world's first signposted (hiking) trails were created" in Fontainebleau shortly after, said David.

Rosa Bonheur, a renowned French artist of this era, painted her iconic "Fairy Pond" in Fontainebleau.

- Nature hotspot -

The forest is home to oak and beech woods as well as coniferous forests, open heathland, fossil dunes, ponds and wetlands.

Thirty million years ago, the forest was an ocean. As the sea receded, it left behind sand which, over millennia, formed the sandstone blocks that now attract rock climbers.

"What makes the Fontainebleau massif unique is the diversity of its landscapes and the richness of its biodiversity," said David.

It hosts more than 6,500 known animal species -- hares and deer to birds like warblers and tawny owls and rare insects, such as the stag beetle.

UNESCO designated Fontainebleau a "biosphere reserve" in 1998.

Around 1,000 hectares are designated strict nature reserves, with no human intervention. One of those reserves has been among the hardest hit by the fire.

- Old foe -

Fire was first recorded in Fontainebleau in the 13th century.

David said detailed records had been kept since 1863 and the current blaze -- which has burned some 1,000 hectares already -- was among the largest in the history books.

In the early 20th century, surveillance towers were erected to address the problem, helping reduce the area burned.

More recently, six 10,000-litre (2,650-gallon) water tanks have been installed in the forest to enable a more rapid response to fires.

Around 30 fires break out each year, most often caused by cigarette butts or unauthorized campfires.

For the past two years, the fire service has been testing an AI surveillance system which can detect smoke and quickly locate the source to notify the fire department.


In a Sweet Discovery, Astronomers Find Sugar Lurking in the Space Between Stars

A long exposure photo shows the Milky Way galaxy star cluster from Tuban village in Badung, Bali, Indonesia, March 23, 2023. (AFP)
A long exposure photo shows the Milky Way galaxy star cluster from Tuban village in Badung, Bali, Indonesia, March 23, 2023. (AFP)
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In a Sweet Discovery, Astronomers Find Sugar Lurking in the Space Between Stars

A long exposure photo shows the Milky Way galaxy star cluster from Tuban village in Badung, Bali, Indonesia, March 23, 2023. (AFP)
A long exposure photo shows the Milky Way galaxy star cluster from Tuban village in Badung, Bali, Indonesia, March 23, 2023. (AFP)

The space between stars just got a little sweeter.

Astronomers have detected a type of sugar in space that's also found in raspberries and self-tanners. The sugar, called erythrulose, lurks in what's called the interstellar medium: thin clouds of gas and dust littered between stars.

Sugar does more than sweeten tea and powder doughnuts. Different varieties fuel our cells and even make up DNA. Scientists are itching to know how sugars form because they're a key ingredient for life as we know it.

Using two dish-shaped radio telescopes in Spain, researchers collected data from a large gas cloud near the center of the Milky Way. They identified the sugar in gas form by comparing telescope signals to samples in the lab. It's the latest kind of sugar detected in space — in a region crossed by NASA's twin Voyager, the farthest spacecraft to ever travel from Earth.

The results were published Monday in the journal Nature Astronomy.

Scientists have found interesting chemistry in our galaxy, including building blocks for genetic material and parts of the cell. They spotted a cousin to table sugar near the center of the Milky Way about 25 years ago, and black grains from asteroid Bennu retrieved by NASA’s Osiris-Rex spacecraft yielded other sugars, including a key DNA ingredient.

The latest sugar isn’t essential for life, but can easily convert to a form that’s thought to be crucial to kick-starting life on Earth. And it’s one of the most complex sugars spotted so far, said astrophysicist Erika Hamden with the University of Arizona.

It's “a pristine example of the stuff that’s just floating out in the galaxy,” said Hamden, who had no role in the new research.

Researchers want to look for more sugars in space and learn about how they convert to different forms.

Finding them in one spot means they're likely also hiding in distant corners of the galaxy along with other important bits, said study author Izaskun Jiménez-Serra, an astrophysicist at the Center for Astrobiology in Spain.

“The key ingredients for the origin of life could be present in other regions across the galaxy, opening the possibility for life to develop elsewhere in the universe,” Jiménez-Serra said.