All USA & Canada articles – Page 20
-
NewsBacteria can learn and form memories without a brain
Scientists have shown that bacteria can learn from past experiences, store memories across generations and adapt their behavior to changing environments.
-
NewsGrowing evidence that sugar substitutes disrupt gut health and metabolism
In a new review, researchers noted that artificial and other low-calorie sweeteners, compared to non-caloric controls such as water or placebo, raised fasting insulin and HbA1c, a marker of long-term blood sugar control, and showed a trend toward worsening insulin sensitivity.
-
NewsBiologists uncover a molecular mechanism that helps bacteria spread antibiotic resistance genes
A new study reveals the molecular mechanism behind one of the most powerful mechanical actions in all of biology, the reeling in of tiny surface fibers called type IV pili.
-
NewsScientists solve decades-old mystery of how malaria parasites invade human cells
Researchers have caught the malaria parasite’s moving junction in the act, obtainingg the first high-resolution view of its three-dimensional structure. It turns out to be a molecular machine that actively remodels the host cell’s membrane to help the parasite force its way inside.
-
NewsA non-toxic guard against Lyme disease could soon be an everyday purchase
Rather than vaccinating people or pets against Lyme disease, researchers are targeting the “reservoir hosts” — small mammals like squirrels, chipmunks and white-footed mice — that naturally carry the bacterium and pass it to ticks.
-
NewsStudy: Three-in-one vaccine shows promise against ‘tripledemic’
A single-shot vaccine in development could protect against flu, COVID-19 and RSV simultaneously. In a study, researchers found that their three-in-one vaccine triggered protective immunity against all three respiratory diseases in mice, ferrets and cotton rats.
-
NewsBillions of doses later: Global review confirms mRNA vaccines are safe, effective and full of promise
A comprehensive review brings together global evidence to strengthen public trust and counter misinformation as mRNA vaccines expand to prevent and treat more diseases.
-
NewsTiny DNA ‘hitchhikers’ may be reshaping life in thawing Arctic soils
A new study in the peatlands of northern Sweden provides one of the clearest pictures yet of how frequently microbes swap, gain and lose genes in nature. The study establishes a new framework for measuring genetic mobility in natural environments.
-
NewsDeep-sea extremophile yields protein that forms super stable biofilm
Scientists have discovered a protein secreted by a deep-sea extremophile — an organism adapted to extreme environmental conditions — that self-assembles into a biofilm and is highly stable, boosting its potential for biomedical applications.
-
NewsBiomarkers may someday help clinicians better detect Borrelia burgdorferi infections
Current tests for Lyme disease often miss infections during the early critical window and cannot tell whether bacteria are still present or were cleared years ago. New research suggests that anti-lipid antibodies may address these shortcomings.
-
NewsTick-borne diseases reported every month of the year and in every Illinois county
A new analysis of state health department data reveals that more than 6,400 Illinois residents were diagnosed with tickborne diseases from 2004-2022.
-
NewsBack in action: Researchers make drug-resistant bacteria vulnerable again
New findings show that disabling a single bacterial protein can restore vancomycin’s power against resistant bacteria – and point to a new strategy for overcoming antibiotic resistance.
-
NewsIntestinal cells found to starve Salmonella of essential nutrients, revealing new tactic in infection defense
A new discovery sheds light on how the human body controls Salmonella infections and opens pathways for potential treatments for Salmonella and other food-borne infections.
-
NewsResearchers affirm long-held belief that viruses can trigger Parkinson’s disease
Researchers have developed a model that uses a nontoxic way to generate the symptoms of Parkinson’s: infection with a virus. It proves that a simple viral infection can trigger the exact brain damage and physical disabilities in animal models that are seen in people with Parkinson’s disease.
-
NewsSame day administration of COVID-19 and influenza vaccines not associated with increase in adverse events
A target trial emulation found that same day coadministration of the COVID-19 and influenza vaccines was not associated with a higher risk of serious or clinically meaningful adverse events compared with receiving only an influenza vaccine.
-
NewsCase study: Fatal rabies in a child
Ontario’s first case of fatal rabies since 1967 provides critical guidance to help prevent death from rabies in future instances. The parents agreed to share their son’s case to help raise awareness of rabies.
-
NewsSea anemone flips a human antiviral strategy on its head
A new study has uncovered a previously unknown antiviral defense mechanism in sea anemones, revealing that animals may have evolved more than one way to fight viral infections.
-
NewsClimate change could reshape flu seasons across the Americas
Researchers find that weather and climate patterns can help predict the timing and severity of flu outbreaks across diverse regions.
-
NewsRings of power – how bacteria use circadian clocks to colonise their world
A new study reveals how bacteria rely on circadian clocks to control the spread of their multi-cellular colonies.
-
NewsHow YouTube shapes public understanding of avian influenza
A new study analyzing more than 11,000 YouTube videos and comments found that online narratives surrounding avian influenza evolved alongside major outbreak developments, including increasing reports of infections in mammals, sporadic human cases, and economic consequences.