All USA & Canada articles – Page 96
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NewsPhotodynamic action weakens resistance to antibiotics in bacteria that attack airways
A study of photodynamic inactivation (PDI) showed it has a novel capacity to modify bacterial sensitivity to antibiotics according to dosage, reducing the resistance and persistence of both standard and clinical strains.
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NewsResearchers discover how to sabotage antibiotic-resistant ‘superbugs’
Scientists say they have learned how to sabotage a key piece of machinery that pathogens use to infect their host cells, and have developed a test to identify the next-generation drugs to target this vulnerable cellular machinery.
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NewsB cell deficient patients gain protective T cell immunity after SARS-CoV-2 vaccination, infection
Researchers found that vaccinated B cell-deficient individuals had significantly reduced risk of moderate and severe disease in comparison to those who were not vaccinated, despite an absence of anti-spike antibody responses.
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NewsToothbrushing tied to lower rates of pneumonia among hospitalized patients
Researchers found that hospital-acquired pneumonia rates were lower among patients who received daily toothbrushing compared to those who did not.
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NewsCoevolution and UV spectrum help Santa’s reindeer feast after flight
The eyes of Rudolph and his reindeer brethren may have evolved so that they can spot their favorite food - a lichen called reindeer moss - during dark and snowy Arctic winters.
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NewsWhy small organisms can make big impacts on climate and emissions
Mary Ann Bruns served on the steering committee for a colloquium held in June by the American Academy of Microbiology, which has just released its colloquium report, ’The Role of Microbes in Mediating Methane Emissions’.
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NewsResearchers ID opportunities to improve future HIV vaccine candidates
An effective HIV vaccine may need to prompt strong responses from immune cells called CD8+ T cells to protect people from acquiring HIV, according to a new study.
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News$1.3 million fund helps to introduce high school students to virus surveillance
The Icahn School of Medicine at Mount Sinai has received more than $1.3 million from the National Institute of General Medical Sciences of the National Institutes of Health (NIH) to expand the New York City Virus Hunters program.
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NewsStudy reveals how the immune system fights to keep herpes at bay
A recent study, conducted using lab-engineered cells, unveils the precise maneuvers used by host and herpes simplex virus (HSV) in the fight for dominance of the cell.
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NewsOmicron induces cellular senescence in human lung, study finds
Researchers investigating the influence of defined altered spike formations have confirmed that the Omicron variant induces cellular senescence in human lungs of COVID-19 patients.
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NewsMicrobiome insights found in faeces help predict infections in liver transplant patients
In a new study, researchers at the University of Chicago were able to predict postoperative infections in liver transplant patients by analyzing molecules in their poop. Their analysis represents a key leap forward in exploring the connection between the gut microbiome — the bacteria that inhabit the human body — ...
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NewsResearchers pave way for next generation COVID-19 immunization strategies
A vaccine booster delivered directly to mucosal site of infection enhances protection against COVID-19 infection in non-human primates, a new study reveals.
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NewsNew understanding of ancient genetic parasite may spur medical breakthroughs
Scientists have published the first high-resolution images and structural details of a virus-like element known as LINE-1, describing it as “an ancient genetic parasite” that is one of the most common parts of human DNA.
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NewsBreastfeeding alters infant gut in ways that boost brain development, may improve test scores
A study of the infant ‘fecal metabolome’ suggests that nursing, including part-time while supplementing with formula, yields significant brain-health benefits.
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NewsGut bacteria of malnourished children benefit from key elements in therapeutic food
Researchers investigating a new therapeutic food aimed at repairing malnourished children’s underdeveloped gut microbiomes has identified key, naturally occurring biochemical components and the important bacterial strains that process these components.
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NewsScientists reveal rare enzyme role change with bacterial defense system assembly
A never-before-seen phenomenon in a protein: alone, the enzyme processes DNA and RNA but, when bound to another protein as part of a defense system, interacts with a completely different type of compound to help bacteria commit suicide.
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NewsInfection with stomach bacteria may increase risk of Alzheimer’s disease
Infection with the stomach bacterium Helicobacter pylori could increase the risk of developing Alzheimer’s disease. In people over the age of 50, the risk following a symptomatic infection can be an average of 11 per cent higher.
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NewsMpox vaccine triggers equally strong immune response in smaller doses
Delivering the two-dose mpox vaccine in smaller than the usual FDA-approved doses produced a detectable immune response. This also occurred regardless of whether people were living with or without HIV.
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News‘Long flu’ has emerged as a consequence similar to long COVID
A new study shows patients hospitalized for flu or COVID-19 face an increased risk of long-term health problems and death.
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NewsNovel early-detection method aims to stem disease spread in animal trade
Researchers have described a simplified method to detect a deadly fungus killing European salamanders - Batrachochytrium salamandrivorans, or Bsal.