All USA & Canada articles – Page 3
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NewsAll life copies DNA unambiguously into proteins. Archaea may be the exception.
A study shows how a methane-producing member of the Archaea, interprets one three-letter sequence — normally a stop codon that signals the end of a protein — in two different ways, synthesizing two different proteins seemingly at random, though biased by conditions in the environment.
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NewsGroundbreaking technique unlocks secrets of bacterial shape-shifting
Scientists have long known that bacteria come in many shapes and sizes, but understanding what those differences mean has remained a major challenge, especially for species that can’t be grown in the lab. A groundbreaking method could change how researchers study bacterial diversity.
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NewsA molecule opens a breach in HIV, providing access to its reservoirs
An international team has unveiled how a molecule capable of opening the “shell” of HIV improves the elimination of infected cells. The study demonstrates how a new CD4-mimetic compound, CJF-III-288, modifies the HIV envelope protein structure to allow for a better immune response.
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NewsResearchers identify why some people with HIV achieve remission after antibody treatment
Researchers have discovered why some people living with HIV who are given broadly neutralizing anti-HIV antibodies (bNAbs) can safely stop taking standard, lifelong HIV medications and maintain control of the virus for years, while others given the same treatment do not achieve this remission.
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NewsNew global guidelines streamline environmental microbiome research
A team of nearly 250 researchers from 28 countries has developed a new set of reporting guidelines for environmental microbiomes called STREAMS. The guidelines are organized by the structure of a scientific manuscript and help ensure that important details aren’t overlooked.
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NewsTreatment and prevention of HIV/AIDS: infectious disease experts talk unfinished business
As the world marks World AIDS Day, world-renowned infectious disease expert Anthony Fauci, MD, and Greg Folkers, MS, MPH, highlight advances made in the treatment and prevention of HIV, but caution ’History will judge us harshly should we squander this opportunity’.
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NewsLong-term HIV control: Could this combination therapy be the key?
A new study shows it may be possible to control HIV without long-term antiviral treatment — an advance that points the way toward a possible cure for a disease that affects 40 million people around the world.
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News Lack of dietary iron may impair immune cells’ ability to fight influenza
New research suggests that a lack of dietary iron can negatively affect the ability of immune cells to respond to viral infection in the lungs. In mice with dietary iron deficiency and influenza, immune cells struggled to produce a key signal needed to fight viruses and did not regain this ability.
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NewsNew guideline on pre-exposure and postexposure HIV prevention
Multiple pre-exposure (PrEP) and postexposure (PEP) treatments are now available to prevent HIV infection. An updated Canadian guideline contains 31 recommendations and 10 good practice statements to help clinicians and other health care professionals offer these options to patients.
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NewsUS- & Argentina startup Michroma wins €250k investment with The Future is Fungi Award 2025
A new frontier in biotechnology just crowned its next pioneer. Out of 187 groundbreaking startups from 59 countries, Michroma wins the The Future is Fungi Award 2025, taking home €250,000 / USD 289 000 in investment.
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NewsMetabolites produced in the intestine play a central role in controlling obesity and diabetes
A study has identified a group of metabolites that travel from the intestine to the liver and then to the heart, where they are pumped throughout the body. These metabolites play an important role in controlling metabolic pathways in the liver and insulin sensitivity.
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NewsGlobal Virus Network issues warning on the Marburg virus outbreak in Ethiopia
The Global Virus Network (GVN) has issued a statement on the newly confirmed outbreak of Marburg virus disease (MVD) in southern Ethiopia. This represents the country’s first documented outbreak of Marburg virus and raises urgent public health, research, and surveillance imperatives.
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NewsMichigan cherry farmers find a surprising food safety ally: falcons
By shooing cherry-pecking birds away, kestrels also keep them from contaminating crops with their droppings, a new study shows. Kestrels were associated with a 3-fold reduction in droppings spotted on branches.
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NewsExpanding seasonal immunization access could minimize off-season RSV epidemics
Researchers found differences in how respiratory syncytial virus spreads among children in rural versus urban communities and concluded that year-round immunizations would minimize risks of large seasonal outbreaks.
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NewsIsland-wide field surveys illuminate land-sea connections in Mo‘orea
A multi-year scientific expedition determined that land use on tropical islands can shape water quality in lagoons and rainfall can be an important mediator for connections between land and lagoon waters.
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NewsEarthquakes shake up Yellowstone’s subterranean ecosystems
Researchers chronicled the ecological changes in subsurface microbial communities that took place after a swarm of small earthquakes rattled the Yellowstone Plateau Volcanic Field in 2021.
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NewsExperimental mRNA therapy shows potential to combat antibiotic-resistant infections
Researchers have reported early success with a novel mRNA-based therapy designed to combat antibiotic-resistant bacteria. In preclinical studies, the therapy slowed bacterial growth, strengthened immune cell activity, and reduced lung tissue damage in models of multidrug-resistant pneumonia.
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NewsOceanographers present new conceptual framework to answer age-old question: What happens to carbon as it sinks through the ocean?
New research spanning multiple ocean regions has found upper ocean ecosystem conditions, such as nutrient availability and microbial interactions, play a major role in shaping the composition of carbon-rich particles sinking into the deep ocean.
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NewsPrebiotic in diet linked to less impulsivity in gambling rats with traumatic brain injury
Using a prebiotic to influence bacterial activity in the gut after a traumatic brain injury may help reduce impulsive behavior, one of the common symptoms to follow a moderate blow to the head, a new study in rats suggests.
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NewsGut microbiome connects obesity to cancer, impacting public health
A new review highlights growing scientific evidence that imbalances in gut bacteria can influence metabolism, trigger inflammation, and increase cancer risk. These insights offer new possibilities for disease prevention, early detection, and personalized health care.