All USA & Canada articles – Page 15
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Novel virus identified in zebrafish from the pet trade causes disease in laboratory fish
Zebrafish in the pet trade are asymptomatic carriers of previously undescribed microbes, including a novel virus that causes hemorrhaging in infected laboratory fish, new research has revealed.
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Living bioelectronic device monitors and manages psoriasis in mice
Coupling skin bacteria-laden hydrogel and electronics, researchers have introduced a bioelectronics system that can deliver management and adaptive treatment of skin inflammation. They test this approach in a mouse model of psoriasis.
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Study shows N95 masks near-perfect at blocking escape of airborne COVID-19
In a head-to-head comparison of masks worn by people with active COVID-19, the inexpensive ‘duckbill’ N95 came out on top, stopping 98% of COVID-19 particles in the breath of infected people from escaping into the air.
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Researchers expose new symbiosis origin theories, identify experimental systems for plant life
A Mississippi State faculty member’s work on symbiosis is pushing back against the newer theory of a ‘single origin’ of root nodule symbiosis (RNS)—that all symbiosis between plant root nodules and nitrogen-fixing bacteria stems from one point—instead suggesting a ‘multiple-origin’ theory of symbiosis which opens a better understanding of genetically ...
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Lung microbiomes predict mortality in children following bone marrow transplant
Using a method that identifies all potentially pathogenic organisms present in the lungs, scientists have discovered links between certain microbial communities and the relative risk of mortality in children who undergo bone marrow transplants.
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Effectiveness of updated COVID-19 vaccines wanes moderately over time, is lower against currently circulating variants
New research shows boosters targeting omicron subvariants of SARS-CoV-2 are still providing reasonably durable protection against infection, hospitalization and death from COVID-19, but are less protective against the JN.1 strain.
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Researchers take step toward development of universal COVID-19 antibodies
Scientists have developed a promising new human monoclonal antibody that appears a step closer to a universal antibody cocktail that works against all strains of SARS-CoV-2.
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Risk of death from COVID-19 lessens, but infection still can cause issues 3 years later
A new study also shows that patients hospitalized within 30 days after infection face a 29% higher death risk in the third year compared with those not infected.
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New antibiotic kills pathogenic bacteria, but spares healthy gut microbes
Researchers have developed a new antibiotic that reduced or eliminated drug-resistant bacterial infections in mouse models of acute pneumonia and sepsis while sparing healthy microbes in the mouse gut.
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Bird flu: diverse range of vaccines platforms ‘crucial’ for enhancing human pandemic preparedness
A new study launches following the discovery of a second case of avian influenza spreading from cows to humans.
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Soil microorganisms could produce additional greenhouse gas emissions from thawing permafrost
New research demonstrates that soil microbes embedded in the permafrost will go after a class of compounds previously thought to be untouchable under certain conditions: polyphenols.
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High H5N1 influenza levels found in mice given raw milk from infected dairy cows
Mice administered raw milk samples from dairy cows infected with H5N1 influenza experienced high virus levels in their respiratory organs and lower virus levels in other vital organs, according to new research.
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Vaccine development program aims to prevent sepsis in newborns
Researchers have been awarded $3.96 million to develop a maternal vaccine that prevents sepsis caused by Klebsiella pneumoniae in newborns and infants.
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Researchers develop experimental mRNA avian flu vaccine
An experimental mRNA vaccine against avian influenza virus H5N1 is highly effective in preventing severe illness and death in preclinical models, according to a new study.
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Climate change is moving tree populations away from the soil fungi that sustain them
In response to climate change, trees, especially those in the far north, may be relocating to soils that don’t have the fungal life to support them, a new study finds.
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New test rapidly diagnoses cat parasite infections and reduces false positives
An easy-to-use test and new paradigm for care can help save lives, sight, cognition and motor function by rapidly diagnosing and treating Toxoplasma infections.
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Milk samples from the 1940s shed new light on antibiotic resistance
Researchers found the samples from before the antibiotic era were resistant to the antibiotic tetracycline.
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Virocells: How the ‘home’ environment influences microbial interactions
Research into ocean virocells - bacteria infected by viruses, thus forming a new organism - has yielded fascinating new insights about how this merger of microbes affects, and is affected by, real-world surroundings.
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Biotech companies leverage novel tools to develop drugs for RSV
Reporter structures that can be introduced into cells for use in drug screening assays emit fluorescent or bioluminescent light at different intensities when RSV genes are inhibited by the potential antiviral agents being tested.
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Sewage overflows linked to increase in gastrointestinal illnesses
A new study suggests the risk of people developing acute gastrointestinal illness is significantly higher in Massachusetts communities that border the Merrimack River in the four days following extreme combined sewer overflows.