All USA & Canada articles – Page 3
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NewsSeasonal COVID-19 vaccination in 2025/26 reduced risk of illness by half in Canada
An interim analysis estimates that the COVID-19 vaccine for the 2025/26 season reduced the risk of illness in Canada by about half at about 9 weeks after vaccination, offering protection beyond the vaccine’s target strain.
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NewsResearchers find diagnostic delays are common for US pediatric patients with malaria
Researchers found that more than one in four pediatric patients treated for malaria in the United States had a delay in their initial diagnosis, increasing the risk of more severe infection.
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NewsThe Nexus of Food Systems, Ecosystems and Human Health: Sign up for our fascinating free webinar!
What if health is not produced by humans alone, but co-created with the ecosystems, organisms, and food systems we depend on? A fascinating free webinar will explore how microbes connect people to food systems and the ecosystems that undergird food production.
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NewsLight without electricity? Glowing algae could make it possible
Researchers successfully turned on the “light switch” in algae and kept them lit up using simple chemical solutions. The finding opens the door for future technologies such as autonomous robots that can operate in dark environments and living sensors for water quality.
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NewsHead impacts associated with altered gut microbiome in football players
Non-concussive head impacts—hits to the head that don’t cause clinically detectable symptoms—are correlated with subsequent changes to the gut microbiome in a small sample of US collegiate football players, according to a new study.
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NewsNew kind of CRISPR could treat viral infection and cancer by shredding sick cells’ DNA
A new technology uses a relative of the CRISPR-Cas9 gene editing system to kill target cells. When activated by a specific, programmable genetic target, the Cas12a2 protein rips a cell’s genome apart. Researchers programmed Cas12a2 to kill virus-infected cells or cancer cells while leaving healthy cells untouched.
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NewsHow river DNA can track fish, frogs, fungi and human feces — all at once
A single scoop of water from an Irish river revealed evidence not only of Ireland’s only frog species, but also signs of the dreaded B. dendrobatidis fungus, marking the first time this devastating amphibian disease has been spotted in the country and exposing a previously unknown risk to Ireland’s frog population.
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NewsDNA analyses uncover what is hiding under the cap plaguing the white button mushroom industry
Researchers have uncovered that bacterial blotch is not caused by a single disease-causing bacteria or pathogen as originally learned, but by a complex of pathogenic bacterial species that thrive in the indoor controlled, humid environments where they are grown.
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NewsStudy uncovers new kind of cold sensor
Investigators studying a bacterial protein have identified a new mechanism of sensing cold temperatures. The finding points to the possibility that this same type of mechanism exists in other organisms, including humans, and may have relevance for disorders involving faulty temperature regulation.
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NewsKey magic mushroom ingredient makes fish less aggressive and lazier
Psilocybin, the chemical compound in magic mushrooms, may reduce energetically costly social behaviors like aggressive swimming bursts, shows a study demonstrating the first evidence of a calming effect in fish.
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NewsDeath-defying protein found in tardigrades preserves synthetic cells
Researchers have shown how a tardigrade protein protects cell membranes, using the proteins to preserve synthetic cells that were dried out and rehydrated in the lab. The finding could lead to a way to store and transport “microfactories” for producing medicines and other biological products.
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NewsReview finds no direct link between aluminium adjuvanted vaccines and serious or long term health conditions
Current evidence does not support direct (causal) associations between aluminium adjuvanted vaccines and serious or long term health outcomes, including autism, diabetes and asthma, finds a review of the latest data.
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NewsPolymer ‘bristles’ could help repel proteins — and germs — from surfaces in medical settings
A non-toxic coating made of polydimethylsiloxane prevents proteins from sticking to surfaces — potentially offering a new tool in the fight against hospital-acquired infections.
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NewsDairy farms in California may transmit H5N1 virus through multiple sources
A new study suggests that avian influenza (H5N1) is transmitted through multiple, previously unknown sources on dairy farms and that some H5N1 positive cows do not show clinical signs of infection.
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NewsEarly life on Earth relied on a surprisingly scarce metal
A new study shows that 3.4 billion years ago, life on Earth relied on a metal called molybdenum, despite its limited availability at the time. It is the first to trace molybdenum’s use this far back in time.
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NewsJ. Craig Venter, genomics pioneer and founder of JCVI and Diploid Genomics, Inc., dies at 79
The J. Craig Venter Institute (JCVI) has announced that J. Craig Venter, Ph.D., the Institute’s founder, board chair, and chief executive officer, died in San Diego following a brief hospitalization for unexpected side effects that arose from treatment of recently diagnosed cancer.
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NewsClimate change increases spillover risk of rodent-borne arenaviruses
Climate change is likely to drive rodent-borne arenaviruses into parts of South America that have never faced these diseases, according to an early risk projection model that incorporated climate projections, shifting rodent populations and the risks of human infection.
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NewsModerate UV light is best to boost the vitamin D content of edible mushrooms, study finds
Researchers have discovered that moderate ultraviolet (UV) light exposure is best when the technique is used to enhance vitamin D₂ in edible mushrooms. Excessive exposure leads to nutrient degradation or a plateau effect, they found.
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NewsNew study shows cranberry juice may boost UTI antibiotics
Researchers recently exposed lab-grown strains of pathogenic Escherichia coli to cranberry juice. Preliminary findings suggest that compounds in the juice re-sensitize resistant strains to antibiotic treatment.
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NewsProviding food baskets to people with tuberculosis is cost-effective and could avert over 100,000 deaths annually in India
Undernutrition is the single greatest modifiable risk factor for tuberculosis (TB). Researchers found that providing food baskets to people with TB and their households may save tens of thousands of lives annually in India if implemented at scale.