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時間:2022-08-15 來源:本站 點擊:258次

Britain classifies new form of Omicron as 'variant under investigation'******

A new form of Omicron named BA.2 has been designated a "variant under investigation," with 426 cases of the Omicron variant sub-lineage confirmed in the United Kingdom, the UK Health Security Agency said on Friday.。

"Overall, the original Omicron lineage, BA.1, is dominant in the UK and the proportion of BA.2 cases is currently low," with the earliest dated December 6, 2021, the agency said in a statement.。

In total, 40 countries have uploaded 8,040 BA.2 sequences to the Global Initiative on Sharing All Influenza Data (GISAID) since November 17. At this point, it is not possible to determine where the sub-lineage may have originated, it added.。

The first sequences were submitted from the Philippines, and most samples have been uploaded from Denmark (6,411), while other countries that have uploaded more than 100 samples are India (530), Sweden (181), and Singapore (127), according to the agency.。

Meera Chand, incident director at the agency, said new mutations are "expected" as the pandemic continues. "So far, there is insufficient evidence to determine whether BA.2 causes more severe illness than Omicron BA.1, but data is limited and UKHSA continues to investigate."

Official figures on Friday showed the UK added 95,787 COVID-19 cases in the latest 24 hours, bringing its total caseload to 15,709,059, and 288 more deaths, taking the national death toll to 153,490.。

More than 90 percent of people aged 12 and above in the UK have had their first dose of vaccine, more than 83 percent have taken both shots, and more than 63 percent have received booster jabs.。











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Global experts build microbial gene catalog******

Chinese and foreign researchers have successfully constructed a global microbial gene catalog, a significant step for worldwide microbiome studies.。

Microorganisms are ubiquitous on Earth. They hide in human skin, intestines, soil, rivers, and oceans and form complex microbiome communities, which affect human health, disease development, and ecological changes on Earth.。

Researchers from China, Germany, Spain, the United States, and Britain constructed the most comprehensive global microbial gene catalog to date from 13,174 publicly available metagenomes across 14 major habitats based on a global microbiome concept.。

The study reveals that most genes are specific to a single habitat. The small gene fractions found in multiple habitats have antibiotic-resistance genes and markers for mobile genetic elements.。

The global microbial gene catalog plays a vital role in exploring the relationship between microorganisms and human health, said Zhao Xingming. Zhao is the biomedical AI team leader from the Institute of Science and Technology for Brain-Inspired Intelligence, Fudan University.。

He added that based on the catalog, the research team would further study the impact of microbes on the human brain's cognition and behavior by cooperating with domestic and foreign research institutes and clinical medical institutions.。

China to face France, Nigeria, Mali in Women's Basketball World Cup qualifiers******

GENEVA, Nov. 23 (Xinhua) -- China will face France, Nigeria and Mali in Group B of the 2022 FIBA Women's Basketball World Cup qualifying tournaments next February, after the draw was made here on Tuesday.。

The four World Cup qualifiers will be played in Belgrade, Osaka and Washington D.C. from February 10 to 13, 2022, with Belgrade scheduled to host Group A and B matches.。

Group A features Australia, South Korea, Serbia and Brazil. Group C matches, to be staged in Osaka, feature Bosnia and Herzegovina, Japan, Canada and Belarus. In Group D, Russia, the United States, Puerto Rico and Belgium will take each other on in Washington D.C..。

The top three finishers from each qualifying tournament will secure their places in the 12-team flagship global women's basketball competition, which will take place in Sydney, Australia from September 22 to October 1, 2022.。

Host nation Australia and the Tokyo Olympic champions the United States have already earned automatic qualification, meaning that the two other best-placed teams will advance from those qualifying tournaments featuring Australia and the USA. Enditem。






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