All USA & Canada articles – Page 7
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NewsWily parasite kills human cells and wears their remains as disguise
The single-celled parasite Entamoeba histolytica gains resistance to the human immune system by ingesting proteins from the outer membranes of human cells and placing them on its own outer surface, a new study finds.
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NewsMeasles virus detected in Houston wastewater before cases were reported
An innovative outbreak detection program that tracks disease-causing viruses in wastewater identified the measles virus in Houston samples collected in early January 2025, before cases were reported.
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NewsViruses that kill toxic algae may increase risks for people and ecosystems
New laboratory research shows that when viruses attack a species that forms toxic algal blooms, those thick, blue-green slicks that choke waterways and that threaten ecosystems, drinking water, and public health, what results might be even worse than before the infection.
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NewsNew vaccine protects against swine, human and bird flu
Annual flu shots could become a thing of the past under a new vaccine strategy. A new study describes a vaccine that protects against H1N1 swine flu and can also protect against influenza in humans and birds.
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NewsTargeted nanoparticles show promise for more effective antifungal treatments
Researchers have developed a new nanotechnology-based approach that could improve treatment of fungal infections, particularly those caused by the increasingly drug-resistant Candida species.
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NewsStudy uncovers how the plastisphere can influence growth of harmful algal blooms
A new study published in Sustainable Microbiology delves into how the age and size of microplastics affects the growth of harmful algal blooms.
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NewsAntibiotics from human use are contaminating rivers worldwide, study shows
Millions of kilometres of rivers around the world are carrying antibiotic pollution at levels high enough to promote drug resistance and harm aquatic life, a new study warns.
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NewsNew study shows obesity linked to long COVID
New research has found that people with excess weight are more likely to experience long-term neurological and mental health symptoms after COVID-19, including headache, vertigo, smell and taste disorders, sleep disturbance, and depression.
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NewsPredictive AI model can help build vaccines for future versions of a virus
Researchers have created an AI tool called EVE-Vax that can predict and design viral proteins likely to emerge in the future. For SARS-CoV-2, panels of these “designer” proteins triggered similar immune responses as real-life viral proteins that emerged during the pandemic.
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NewsResearchers find new defense against hard-to-treat plant diseases
Scientists have developed a new approach to countering citrus greening and potato zebra chip diseases. Their method uses spinach antimicrobial peptides, known as defensins, which naturally defend plants.
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NewsDiscovery opens up for new ways to treat chlamydia
Researchers have discovered a type of molecule that can kill chlamydia bacteria but spare bacteria that are important for health.
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NewsScientists engineer antibody against flu with sticky staying power
Scientists have engineered a monoclonal antibody that can protect mice from a lethal dose of influenza A, a new study shows. The new molecule combines the specificity of a mature flu fighter with the broad binding capacity of a more general immune system defender. Source: NIAID Colorized transmission ...
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NewsScientists win award for bringing breakthrough HIV treatment lenacapavir into play
Three people have been awarded the AAAS Mani L. Bhaumik Breakthrough of the Year Award for their work on the first HIV drug to offer long-lasting protection from infection — eliminating the need for people to take a daily pill.
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NewsSynthetic lichen points a pathway to self-healing concrete
Addressing one of the most persistent and expensive problems in construction, scientists have taken inspiration from nature to develop a synthetic lichen system to enable concrete to self-repair.
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NewsGlobal review of bird flu in cats points to risk of another pandemic
Bird flu (H5N1) is rapidly evolving into the possibility of a human pandemic, say researchers who have been documenting research on bird flu in cats and calling for urgent surveillance of cats to help avoid human-to-human transmission.
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NewsFoot traffic can predict COVID-19 spread in New York City neighborhoods
A new study reveals how foot traffic data from mobile devices can enhance neighborhood-level COVID-19 forecasts in New York City, providing a novel approach to predicting the spread of the SARS-CoV-2 virus and improving targeted public health interventions.
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NewsDisease experts call for reinstatement of CDC’s Healthcare Infection Control Practices Advisory Committee (HICPAC)
The Society for Healthcare Epidemiology of America has called for the reinstatement of CDC’s Healthcare Infection Control Practices Advisory Committee (HICPAC), warning that decades of progress in preventing healthcare-associated infections are under threat.
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NewsBat virus evolution suggests wildlife trade sparked COVID-19 virus emergence in humans
The ancestor of the virus that causes COVID-19 left its point of origin in Western China or Northern Laos just several years before the disease first emerged in humans up to 2,700 kilometers away in Central China, suggesting the wildlife trade played a role.
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NewsBreakthrough discovery uses gut bacteria and AI to diagnose a chronic pain syndrome
Scientists have developed AI technology that can detect patterns in gut bacteria to identify complex regional pain syndrome (CRPS) with remarkable accuracy, potentially transforming how CRPS is diagnosed and treated.
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NewsHigh-density screening technique reveals key genes for biotechnology improvements
Scientists used a gene-silencing tool and molecular guides to probe how photosynthetic bacteria adapt to light and temperature changes, finding even partial suppression of certain genes yielded big benefits in modifying the stress response of wild microbes.