All USA & Canada articles – Page 27
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NewsResearchers develop promising new vaccine against H5N1 bird flu
Researchers have developed a vaccine approach that shows promise in protecting against highly pathogenic bird flu, demonstrating strong efficacy in both mice and cattle. In 2024, the virus spread to dairy cattle and subsequently caused illness in about 70 farm workers with close contact to infected animals.
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NewsAmbient air pollution is associated with respiratory infection burden in the first year of life
Ambient air pollution is associated with respiratory infection burden in the first year of life, according to preliminary findings from the Immune Development in Early Life (IDEaL) Rome Cohort.
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NewsDrip-irrigated halotolerant PGPB boost jujube yield and quality in saline soils by reshaping soil bacterial communities
A new study demonstrates that applying halotolerant plant growth-promoting bacteria (PGPB) via drip irrigation during the crop growth period can effectively alleviate soil salinity stress, enhance jujube productivity and fruit quality, and restructure rhizosphere bacterial communities in saline agricultural soils.
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NewsCOVID-19 and severe heart attack increase mortality by 25% after one year, more than double pre-pandemic rates
Findings from the North American COVID-19 Myocardial Infarction (NACMI) registry demonstrate significantly higher one-year mortality rates in patients with COVID-19 and ST-elevation myocardial infarction (STEMI) compared to patients with STEMI alone.
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NewsNew study examines measles vaccination coverage after a postelimination outbreak
In 2022–2023, a large postelimination measles outbreak occurred in central Ohio. A study found that 20 months after the outbreak, MMR coverage across the entire primary care network (PCN) population remained well below herd immunity levels, with minimal gains.
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NewsTiny switch controls rare rotary machine in bacteria - and can even reverse direction of spin
Researchers have discovered a tiny molecular switch that can control and reverse the direction of a rare rotary machine linked to motility, surface colonization and protein secretion in bacteria.
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NewsMen and women may differ in how fitness level Is linked to gut microbiome diversity
Aerobic fitness may be influenced by microbes in the gut, but men and women appear to show a different connection, according to a first-of-its-kind study.
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OpinionReversing the threat: How to stop measles from spreading again
As the Global Virus Network issues a stark warning over the significant resurgence of measles in the US and globally, William J. Moss, Sten H. Vermund, and Maggie L. Bartlett set out what needs to be done if the preventable harms of the current surge are to be reversed.
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NewsThat late-night snacking is probably messing up your gut
It’s well known that chronic stress can disrupt bowel function, sending people running to the bathroom or making them constipated. New research suggests that eating late at night amplifies these effects, with implications for both digestive health and the gut microbiome.
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NewsSARS-CoV-2 does not persist in the placenta after maternal recovery from COVID-19
A new study finds that the virus that causes COVID-19 does not linger in placental tissue weeks to months after a pregnant woman recovers from infection - offering important reassurance for clinicians and patients alike.
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NewsCosmetics from waste? New microbial discovery could enable more sustainable production of high-value chemical products
Researchers have made a key discovery about how certain bacterial strains produce a set of economically valuable chemicals — opening the door to new, more sustainable production methods. A family of molecules could be made via bacterial fermentation instead of from palm oil, as they are today.
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NewsHow scientists are breeding spinach to better withstand Pythium
Breeding efforts to improve spinach tolerance to a pathogen called Pythium will help both indoor and outdoor growers of the popular leafy green.
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NewsMicrobes contribute a surprisingly large array of proteins in fermented foods
A study examining the proteins found in fermented foods like yogurt, cheese and bread found that a surprisingly large number, and percentage, of microbial proteins contribute to their overall protein content.
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NewsNew insights into how bacteria manage DNA
New analytical methods have enabled researchers to uncover how the sequence, physical shape and flexibility of bacterial DNA guide the activity of an enzyme called DNA gyrase, which previously got all the credit for managing DNA.
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NewsCOVID antiviral speeds recovery but doesn’t reduce hospitalization in vaccinated patients, trials find
Paxlovid (nirmatrelvir-ritonavir) does not reduce hospital admissions or deaths in vaccinated adults at higher risk of severe COVID-19, despite helping them recover faster, according to results from two national trials.
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NewsHigh levels of gut bacterial toxin trigger lupus nephritis
Research suggests that using antibiotics to target the Ruminococcus gnavus lipoglycan, or the protein it activates on immune cell surfaces to amplify damaging inflammation, could serve as an alternative to current lupus nephritis therapies that suppress the immune system.
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NewsSecret to a healthy liver found in a young microbiome
Restoring the gut microbiome to its youthful state may hold the key to slowing aging and preventing liver cancer, one of the fastest-growing cancers worldwide, according to a study.
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NewsResearchers fight oral cancer with bioengineered chewing gum
Research shows that antiviral and antibacterial chewing gums reduce the levels of three microbes linked to worse outcomes in oral cancers, paving the way for more effective and affordable therapies.
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NewsScientists catch a fungal enzyme open for business
A new study shows that caspofungin, a widely used antifungal drug, works only when its target enzyme is active, pointing the way toward designing better treatments.
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NewsResearch on tick-transmitted disease reveals potential weakness, opening paths to new treatments
Tularemia is a rare but highly infectious disease caused by Francisella tularensis, a bacterium that can evade immune defenses. Scientists have isolated and studied a set of proteins that play a central role in infection, revealing a potential weakness.