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Across China, more than 161.12 million doses of Covid-19 vaccine had been given. Pixabay

A new Covid-19 vaccine developed by China’s Sinopharm has recently been approved for clinical trials.

The new recombinant Covid-19 vaccine, developed by the National Vaccine & Serum Institute, an R&D center of Sinopharm’s bioscience subsidiary the China National Biotec Group (CNBG), got approval from the National Medical Products Administration on Friday, the CNBG said on its official Weibo account on Saturday, Xinhua reported.


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To cause neutralizing antibodies, the vaccine uses genetic modification to create harmless copies of the virus S-protein. Pixabay

The vaccine is based on the structural features of the receptor-binding domain (RBD) on the virus’ spike protein (S-protein). It uses genetic engineering to grow harmless copies of the virus S-protein to induce neutralizing antibodies.

The company said that recombinant vaccine technology is mature and suitable for large-scale production. The production does not require facilities with high biosafety levels since the process does not involve live viruses.


Another inactivated vaccine, made by a CNBG subsidiary, was approved to enter the market on a conditional basis in February. Pixabay

The recombinant vaccine is the company’s third Covid-19 vaccine. Last December, an inactivated vaccine developed by the Beijing Biological Products Institute Co., Ltd. under CNBG became the first Chinese Covid-19 vaccine to have conditional marketing authorization.

In February, another inactivated vaccine from the Wuhan Institute of Biological Products, a CNBG affiliate, was allowed to enter the market on a conditional basis.


The technology for recombinant vaccines is advanced and ready for large-scale development. Since the procedure does not contain live viruses, facilities with high biosafety standards are not needed. Pixabay

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More than 161.12 million doses of Covid-19 vaccines had been administered across China as of Friday, the National Health Commission said on Saturday.


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When you're pregnant, the immune system is seeing the placenta for the first time in decades.

The US researchers have discovered a class of immune cells that plays a role in miscarriage, which affects about a quarter of pregnancies.

Researchers at the University of California-San Francisco found that the recently discovered subset of cells known as extrathymic Aire-expressing cells in the immune system may prevent the mother's immune system from attacking the placenta and fetus.

The researchers showed that pregnant mice who did not have this subset of cells were twice as likely to miscarry, and in many of these pregnancies fetal growth was severely restricted.

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"When you're pregnant, the immune system is seeing the placenta for the first time in decades -- not since the mother made a placenta when she herself was a fetus," said Eva Gillis-Buck, from UCSF.

"Our research suggests that this subset of immune cells is carrying out a sort of 'secondary education' -- sometimes many years after the better-known population of the educator cells have carried out the primary education in the thymus -- teaching T cells not to attack the fetus, the placenta and other tissues involved in pregnancy," she added. The findings are published in the journal Science Immunology.

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It's not surprising that over half of those surveyed feel more comfortable using emojis than talking on the phone or in person.

The tiny emojis being shared on billions of devices worldwide can play a major role in digital communication, with most people saying that emoji compels them to feel more empathy towards others, according to an Adobe report.

Adobe's global emoji study found that emoji even helps people overcome language barriers and form connections that would otherwise be difficult to do.

"We were surprised and delighted by the discoveries made in the survey, most notably how enthusiastic respondents were for emoji as a means to express themselves," the company said in a statement.

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Emojis sometimes get criticized for being overly saccharine, but this sweetness is key when it comes to diffusing some of the heaviness of online communication.

"Many of the emoji are focused on positive emotions, so it's easy to insert them into our conversations and lighten the mood," the Adobe study said.

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Jeff Bezos at the ENCORE awards.

Following the grand Richard Branson show where he carried Andhra Pradesh-born Sirisha Bandla and fellow space travelers on his shoulders after successfully flying to the edge of space, it is time for Amazon Founder Jeff Bezos to applaud Sanjal Gavande, one of the key engineers who designed the New Shephard rocket set to take Bezos and the crew to space on July 20.

Billionaire Bezos is set to fly to the edge of space aboard what is touted as the world's first unpiloted suborbital flight. Born in Kalyan, Maharashtra, Gavande is a systems engineer at Blue Origin who always dreamt of designing aerospace rockets.

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After completing Bachelor's in mechanical engineering from the University of Mumbai, she flew to the US in 2011 to pursue a Master's in mechanical engineering from the Michigan Technological University. She also applied for an engineering job at the US space agency NASA but finally landed her dream job at Blue Origin

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