All USA & Canada articles – Page 37
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NewsStandard-dose antibiotic the ‘preferred choice’ of treatment for uncomplicated acute sinusitis
A study of patients with acute sinusitis found no major differences in measured outcomes between adults who received standard amoxicillin and amoxicillin‑clavulanate. Patients treated with amoxicillin‑clavulanate were at slightly higher risk of contracting secondary infections.
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NewsMeasles vaccine gaps persist among ER patients
A study has found critical gaps in knowledge, vaccination status, and acceptance of the measles, mumps, and rubella (MMR) vaccine among patients visiting emergency departments across the United States. It examines how misinformation and access barriers may contribute to declining vaccination rates.
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NewsStudy finds warmer streams may weaken river food webs
Rising stream temperatures may be weakening the foundation of river food webs by altering how carbon moves through these watery ecosystems. When water temperatures increase, microbes and aquatic insects process fallen leaves, twigs and bark more rapidly, but a smaller fraction of that leaf litter supports their growth.
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NewsStudy finds blood pressure drug effective for treating antibiotic-resistant bacteria
A new study reports that a drug used to lower blood pressure could also be the basis of a promising new treatment for methicillin-resistant Staphylococcus aureus (MRSA). Candesartan cilexetil not only killed MRSA bacteria at different growth stages, but also reduced the formation of biofilms.
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NewsModeling premature aging in yeast reveals key effects of progerin on cellular lifespan
Researchers developed a yeast-based model to study premature aging by expressing Progerin, the toxic protein responsible for Hutchinson–Gilford Progeria Syndrome. Using genetically engineered yeast cells, they compared the effects of Progerin with its normal counterpart, Lamin A.
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NewsAncient viruses serving as gene delivery couriers to help bacteria resist antibiotics
Research has shed important new light on the enemies-turned-allies that allow bacteria to exchange genes, including those linked to antimicrobial resistance (AMR).
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NewsColor test ‘sniffs out’ dangerous staph strains fast
Researchers have developed a rapid colour-changing test that can distinguish between different strains of golden staph, including those likely to be virulent and antibiotic resistant.
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NewsStudy reveals new way to strengthen immunity against the flu
A new vaccine model targets epitopes, specific but distinct regions of the protein on the surface of the influenza virus. The model includes different versions of epitopes in hopes of redirecting how the immune system responds.
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NewsResearchers synthesize photosynthetic molecule found in bacteria
Researchers have successfully synthesized bacteriochlorophyll a, a photosynthetic pigment found in bacteria which absorbs infrared light. The work represents the first chemical synthesis of this molecule and could give scientists deeper insights into photosynthetic function and photosynthetic energy.
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NewsAs syphilis cases rise, study links infection with higher risk of stroke, heart attack and other serious cardiovascular problems
Adults with later-stage syphilis are more likely to develop major cardiovascular problems – including stroke, heart attack or aortic aneurysm – than similar patients without the infection. The increased risk is primarily found in those whose infection progressed longer than a year.
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NewsFirst continent-wide map of dominant avian influenza strain explains its spread
Scientists provided the most complete view of bird flu’s spread through wild bird populations across North America, explaining how the dominant strain advanced, maintaining the risk of human infections.
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NewsStudy reveals genome-wide host–virus genetic interactions in cancer risk
Researchers report a major advance in understanding how interactions between human and viral genomes shape disease risk. They found that variations in the Epstein–Barr virus, together with a specific immune-related gene (HLA-A*11:01), strongly influence the risk of nasopharyngeal cancer.
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NewsMBL scientist Alexandra Z. Worden honored with a Guggenheim Fellowship
Alexandra Z. Worden, Senior Scientist in the Bay Paul Center at the Marine Biological Laboratory and a Professor in the Department of the Geophysical Sciences at the University of Chicago was awarded a Guggenheim Fellowship this week, in recognition of her groundbreaking research in ocean biogeochemistry.
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NewsGut microbiome serves as key driver for bacterial infection outcomes for fatty liver disease
Researchers found that metabolic dysfunction–associated steatotic liver disease dramatically worsens outcomes following infection with Vibrio vulnificus, a potentially life-threatening foodborne bacterium commonly associated with seafood consumption.
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News American microbiologist behind global water safety breakthrough wins 2026 Lee Kuan Yew Water Prize
Professor Joan Bray Rose has been recognised for pioneering Quantitative Microbial Risk Assessment (QMRA) as a global approach for assessing pathogen risks in water. QMRA has been adopted into global drinking water standards and enabled safe water reuse.
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News‘Safe’ fertilizer linked to extreme water quality loss in Canadian Prairies
Research has found that widespread application of the common farm fertilizer, urea, severely degrades water quality in the Canadian Prairies. Urea added to farm ponds increased growth of algae to levels 10 times higher than seen in other damaged ecosystems, such as Lake Winnipeg in Manitoba.
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NewsIn developing immunity to allergens, a little ‘dirty’ goes a long way
Exposure to diverse microbes and proteins early in life creates broad immune memory and a specific antibody that helps block allergic reactions later in life. Rather than overreacting to harmless allergens, an experienced immune system responds in a balanced way.
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NewsA closer look at immune ‘memory’ - and how long it lasts
A new review shares recent advances from the field of immune memory and highlights key steps we might take to develop even more effective, longer-lasting immunity against deadly diseases.
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NewsMolecular biologist Li-Jun Ma wins 2026 Mahoney Life Sciences Prize
Li-Jun Ma has been chosen as this year’s winner of the Mahoney Life Sciences Prize for her work toward mitigating the effects of a fungal pathogen that is causing the functional extinction of the bananas most commonly found in U.S. supermarkets.
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NewsStudy reveals hidden damage in stony corals using 3D imaging and AI
Researchers investigating how disease affects coral structure turned to X-ray microcomputed tomography which generates detailed 3D reconstructions down to microscopic pores, which reveal internal skeletal features, including porosity, thickness and structural orientation, in a non-destructive way.