All USA & Canada articles – Page 23
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NewsCorals might be adapting to climate change, study shows
Researchers showed that despite a gradual increase in ocean acidity levels over the past 200 years, some corals seem to be able to adjust and continue to generate their hard, stony skeleton structures.
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NewsPeptide study paves path toward new weapon against antibiotic-resistant bacteria
New research into antimicrobial peptides, small chains of amino acids able to damage bacterial cells, shows why some peptides are more effective at doing that and also why some cells are more vulnerable.
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NewsCould bacteria help fix the smoky taste of wildfire-tainted wine?
New laboratory experiments show that a bacterium that lives on grape plants can break down guaiacol—an unpleasant-tasting substance which ruins wines made from grapes exposed to wildfire smoke.
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NewsEngineers use bacterial nanowires to create first artificial neurons that could directly communicate with living cells
Engineers have created an artificial neuron with electrical functions that closely mirror those of biological ones. Using protein nanowires synthesized from electricity-generating bacteria, the discovery could herald immensely efficient computers built on biological principles.
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NewsMicrobial DNA sequencing reveals nutrient pollution and climate change reinforce lake eutrophication
A new study using DNA sequencing of lakebed microbes reveals that nutrient pollution from agricultural runoff and climate change amplify each other in ways that profoundly affect the health of lake ecosystems.
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NewsSome plants can make their own fertilizer - scientists say they learned it more than once
In a new study, scientists show that chemical receptors that plants use to recognize nitrogen-fixing bacteria have developed the same function independently on at least three separate occasions through a process called convergent evolution.
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NewsScientist awarded $5 million to improve mental health and HIV care for adolescents in Uganda
The National Institutes of Health (NIH) has awarded Dr. Philip Kreniske $5,115,391 for a groundbreaking research project to improve mental health and antiretroviral treatment adherence among adolescents living with HIV in rural Uganda.
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NewsUnder half in US would recommend some routine vaccinations during pregnancy
Data from a new APPC health survey finds a reluctance among the public to recommend that someone who is pregnant get a Covid-19 vaccine, with just 38% saying they would do so. Less than half of the survey respondents (42%) say it is safe to take an mRNA Covid-19 vaccine during pregnancy.
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NewsRisk of long COVID in kids doubles after second infection
Children and adolescents were twice as likely to experience long COVID after catching COVID for the second time, compared to their peers with a single previous infection, results running counter to the popular perceptions that COVID in children is ‘mild’.
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NewsResearchers uncover HIV mystery that could unlock the path to a cure
Researchers have identified for the first time how HIV enters a dormant state in infected cells that allows the virus to “hide” from the immune system and current treatments. HIV orchestrates its own survival by reprogramming host cells to create the perfect hiding place.
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NewsNew one-hour, low-cost HPV test could transform cervical cancer screening in Africa and beyond
A team of researchers has developed a simple, affordable human papillomavirus (HPV) test that delivers results in less than an hour with no specialized laboratory required.
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NewsNew clues in how plant microbiomes protect against bacterial speck disease
A new study gives new clues on how a tomato plant’s microbiome can be used to combat the bacterial speck pathogen. Researchers found populations of Xanthomonas and Pseudomonas bacteria on the plants that had developed a resistance against bacterial speck.
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NewsNatural antimicrobial drugs found in pollen could help us protect bee colonies from infection
Pollen gathered by honeybees contains antimicrobial-producing bacteria that protect the hive against disease, a new study reveals. The same beneficial bacteria occur in pollen stores of honeybee colonies and on pollen of nearby plants.
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NewsStudy shows HPV vaccine protects vaccinated — and unvaccinated — women
A study has found that the introduction of the human papillomavirus (HPV) vaccine in community settings is highly effective in protecting young women from infections caused by the cervical-cancer-causing virus—including women who didn’t even receive the vaccine.
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NewsDeadly pathogens found in commercial raw cat foods
An analysis of commercial raw cat foods detected disease-causing microbes, including some that are resistant to antibiotics, creating risks for both pets and their owners, according to a new study.
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NewsStudy shows mucus contains molecules that block Salmonella infection
Researchers have identified mucins that defend against Salmonella and other bacteria that cause diarrhea. They now hope to mimic this defense system to create synthetic mucins that could help prevent or treat illness in soldiers or other people at risk of exposure to Salmonella.
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NewsTwo-drug combination shows promise in helping heal chronic wounds
By adding small doses of a simple molecule called chlorate to standard antibiotics, researchers foundthe combination proved 10,000 times more effective at killing bacterial cells in the lab than single-drug antibiotics.
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NewsInactive H5N1 influenza virus in pasteurized milk poses minimal health risks
Proteins and genetic material from H5N1 influenza viruses have been found in pasteurized milk in the United States, but a study shows those inactive viral pieces represent little to no health risk. H5N1-contaminated milk that was pasteurized did not significantly affect the immune system.
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NewsNew mechanisms for bacterial motility and DNA transfer between bacteria decoded
Scientists have discovered a new family of signaling proteins, widespread in the bacterial kingdom and contributing to regulating bacterial motility and DNA uptake mechanisms.
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NewsGlobal Virus Network launches multi-country mpox diagnostic evaluation to close global preparedness gaps
The Global Virus Network has initiated one of the first coordinated, multi-country evaluations of rapid point-of-care mpox diagnostics, a critical step to prevent resurgence and ensure the world is better prepared for future epidemics.