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In a study at The University of Alabama, aging fruit flies died faster than younger flies from a viral infection because of different genetic responses, lowering the older flies’ tolerance to the infection.

The findings published recently in G3: Genes, Genomes, Genetics add to the understanding of innate immunity, the first line of defense against infections, which is not fully understood in humans, and prove the fruit fly, Drosophila, is a good candidate for aging immunity studies that could lead to advancements in treating in older humans.

“We are living in times where there is a substantial increase in aging populations, and we know there is a decline of immune function in humans as we age,” said Dr. Stanislava Chtarbanova, UA assistant professor of biological sciences whose lab led the study. “This is the first study to use the fly for investigating age-dependent, anti-viral responses. Our lab can leverage this genetic model to study the underlying aging immunity.”

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The Biden administration on Monday said it has approved a major solar energy project in the California desert that will be capable of powering nearly 90000 homes.

The $550 million Crimson Solar Project will be sited on 2000 acres of federal land west of Blythe, California, the Interior Department said in a statement. It is being developed by Canadian Solar (CSIQ.O) unit Recurrent Energy and will deliver power to California utility Southern California Edison.

The announcement comes as President Joe Biden has vowed to expand development of renewable energy projects on public lands as part of a broader agenda to fight climate change, create jobs and reverse former President Donald Trump’s emphasis on maximizing fossil fuel extraction.

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Now, researchers have revealed that colistin punches holes in bacteria, causing them to pop like balloons. The work, funded by the Medical Research Council and Wellcome Trust, and published in the journal eLife, also identified a way of making the antibiotic more effective at killing bacteria.

Scientists have revealed how an antibiotic of ‘last resort’ kills bacteria.

The findings, from Imperial College London and the University of Texas, may also reveal a potential way to make the antibiotic more powerful.

The antibiotic colistin has become a last resort treatment for infections caused by some of the world’s nastiest superbugs. However, despite being discovered over 70 years ago, the process by which this antibiotic kills bacteria has, until now, been something of a mystery.

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New symptoms for the disease now include “chills, repeated shaking with chills, muscle pain, headache, sore throat and new loss of taste or smell,” the CDC said.

The Centers for Disease Control and Prevention has tripled the number of coronavirus symptoms it lists on its website.

The federal organization previously listed fever, cough and shortness of breath as symptoms of COVID-19. The CDC has added six additional symptoms as people “have had a wide range of symptoms reported,” it says on its website.

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