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Showing posts from November 28, 2021

Omicron mutations may hurt effectiveness of Covid-19 antibody therapies, but it’s too soon to tell

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Mutations found in the Omicron variant of Covid-19 might affect the viability of Covid-19 antibody  treatments, however there isn't sufficient information to know yet, US Surgeon General Dr. Vivek Murthy said. “It's possible with the monoclonal antibodies that they may be affected,” Murthy said in a discussion hosted by the US Chamber of Commerce. “It's certainly possible because we know that they target specific parts of the virus and if there are mutations of those parts of the virus in this new variant, then these monoclonal antibodies may not be able to attach as easily to the virus and may not be able to then activate and recruit the immune system to clear the virus,” he said. Murthy said more data is had to know for sure. “The only way we'll know for sure is actually the test the monoclonal antibodies against the virus or pseudovirus in the laboratory. That's the work that’s underway," Murthy said. Pseudoviruses are engineered v...

Mysterious footprints, thought to have belonged to a bear, belong to obscure human predecessor

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    A footprint from Laetoli site A, left, that specialists say has a place with a formerly obscure kind of hominin. On the right is a picture of a cast of an footprint having a place with Australopithecus afarensis. Footprints found in 1978 at in Tanzania and dated to 3.66 million years prior were broadly thought to be the most seasoned uncontested proof of upright walking in the human family tree. Found at a spot known as Laetoli site G, they are by and large acknowledged as having a place with Australopithecus afarensis - - the types of the popular skeleton "Lucy," maybe the world's most popular fossil. However, the Laetoli site G impressions weren't the only ancient trackways specialists ran over around then. A set of footprints a mile away, at a spot called Laetoli site A, were ascribed to a young bear strolling upstanding on its rear legs since they were so not quite the same as the tracks left by Australopithecus afarensis. Researchers pre...