bacteria
Salmonella Is Everywhere
From granola to guacamole, a wide variety of foods have been recalled lately over salmonella risks. Experts say common-sense precautions go a long way. Just as the US's explosive diarrhea situation is starting to improve, there seem to be fresh new food risks to worry about. Jalapeño peppers, eggs, granola, and even dog food are being recalled because of possible contamination with salmonella bacteria. A growing outbreak related to contaminated jalapeños is responsible for 431 illnesses in 32 states, with 57 people requiring hospitalization, according to an August 19 update from the Centers for Disease Control and Prevention.
There's a New Link Between Gut Health and Alzheimer's Disease
Researchers found that a metabolite produced by gut bacteria can weaken the barrier that protects the brain and promote changes associated with the cognitive disease. For years, scientists have known that the gut microbiome of people with Alzheimer's differs from that of healthy people. What remains unclear is whether these differences are a consequence of the disease, contribute to it, or simply accompany it. It is possible that part of the puzzle lies not in the gut bacteria themselves but in the molecules they produce, which end up circulating throughout the body. A team of scientists believes it has found one such molecule.
How generative AI and physics can help design new antibiotics
By 2050, scientists estimate that antibiotic-resistant infections will be associated with more than eight million deaths around the world every year. These are bacterial infections that resist traditional antibiotics like penicillin. They can develop when you eat contaminated food, have an open wound or undergo surgery. E. coli is a good example, as several strains have become highly resistant to conventional antibiotics . They can also arrive as secondary infections, like pneumonia after a virus .
Scientists Used AI to Create 16 New Viruses
The use of AI systems to create viruses opens up new possibilities for combating bacterial resistance. It also raises concerns about the pace at which technology is outstripping regulation. For the first time, an artificial intelligence system has created a series of previously unknown viruses capable of infecting and eliminating certain types of bacteria. This breakthrough opens up new possibilities for combating bacterial resistance . However, it also raises concerns about the potential misuse of this technology to design biological weapons.
Artificial Armageddon? As AI designs 16 brand-new VIRUSES, scientists raise fears bots could come up with a catastrophic bioweapon
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AI used to create viruses not found in nature for first time
US researchers have announced the creation of new viruses using artificial intelligence, a scientific first that raises hopes for advances in medical treatments while also stoking anxiety about the dangers of the frontier technology. In findings published in the journal Science, researchers at Stanford University and the Broad Institute of MIT and Harvard said they used a naturally occurring phage - a type of virus that infects bacteria - as a template to generate thousands of genomes with AI. In tests, a mixture of the synthetic viruses proved more effective at killing E coli bacteria than the naturally occurring viruses, according to the findings. "Our approach expands what synthetic genomics can achieve alongside methods such as directed evolution and rational engineering, lays out a path for generating adaptive and resilient phage therapies against rapidly evolving pathogens, and establishes a foundation for the generative design of larger, more complex genomes," the researchers wrote in Science. Brian Hie and Samuel King, two of the paper's authors, did not immediately respond to requests for comment.
AI is now making new viruses
Did we learn nothing from sci-fi? A study published in Science (via The New York Times) details how researchers used an AI model to design new viruses capable of infecting and reproducing inside bacteria. The good news: they took appropriate precautions, and their work could lead to breakthroughs in gene therapy and biotechnology. The bad news: the next guys might not be so generous. Scientists at Palo Alto's Arc Institute and Stanford University created the viruses with the genome language models Evo 1 and Evo 2. They work somewhat like large language models (LLMs) such as ChatGPT or Claude.
Artificial Intelligence used to design brand new viruses
Artificial Intelligence has been used to design brand new viruses that are fully functional and can replicate in the laboratory, say US researchers. It is the first time whole genomes have been successfully designed by AI. The resulting 16 novel viruses were created to infect bacteria and pose no threat to people. The breakthrough has been labelled a very significant turning point in science that could unlock a new era for treating disease. But experts have also warned AI-designed viruses raise urgent safety and security concerns.
What to Know About the 'Flesh-Eating' Bacteria That Killed Someone in Florida
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