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New COVID Sub-Variant BA 2.75 Detected in India, WHO Says_我的网站

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一 | The World Health Organization (WHO) has revealed that the new BA.2.75 sub-lineage of the Omicron variant of COVID has been detected in India.,"In Europe and America, BA.4 and BA.5 are driving waves. In countries like India, a new sub-lineage of BA.2.75 has also been detected, which we're following," WHO Director-General Tedros Adhanom Ghebreyesus said at a press briefing on Wednesday.,He said that new COVID cases reported worldwide have spiked by nearly 30 percent.,Experts say the BA.2.75 variant includes new mutations in the spike protein, in addition to mutations that are already present in the Omicron variant.,This allows it to evade several antibodies and can infect people who have been vaccinated or infected previously. The detection of BA.2.75 has led scientists across the globe to dive deep into the research to learn more about the new variant and the possibility of another COVID wave.,In India, the BA.5 sub-variant has been detected in the states of Tamil Nadu, Karnataka, West Bengal, Maharashtra, Telangana, Delhi, Haryana, Gujarat, and the Ladakh union territory as well.,WHO Chief Scientist Soumya Swaminathan said in a video posted on Twitter that there has been an emergence of a sub-variant called the BA.2.75, "first reported from India and then from about 10 other countries.",Swaminathan said there are still limited sequences available of the sub-variant to analyze, "but this sub-variant seems to have a few mutations on the receptor-binding domain of the spike protein. So obviously, that's a key part of the virus that attaches itself to the human receptor.","So we have to watch that. It's still too early to know if this sub-variant has properties of additional immune evasion or indeed of being more clinically severe. We don't know that," she added.,Last week, Dr. Shay Fleishon, an Israeli scientist, claimed that a new coronavirus variant had hit 10 Indian states and sparked concerns of a fourth wave of the COVID-19 pandemic.,The current daily positive test rate is, however, is around 4.32 percent, down from around 16-17 percent in January 2022, the peak of the first Omicron wave.。澳门8月21日电（记者齐菲、宋晨）“浮华清影——清代广东绘画展”21日在澳门艺术博物馆开幕，展出粤港澳三地多家博物馆馆藏清代广东绘画精品。清代广东绘画是澳门艺术博物馆重要特色馆藏。本次展览以澳门艺术博物馆馆藏为基础，结合广东省博物馆（广州鲁迅纪念馆）、广州艺术博物院（广州美术馆）、香港艺术馆珍藏，共计展出136件（套）书画精品，呈现清代早、中、晚期54位画家在山水、花鸟、人物题材方面的成就，展示清代广东绘画在笔墨技法、题材开拓及中西艺术交融方面的多元探索。据介绍，清代以前见诸文献及画迹的广东画家有限。