All USA & Canada articles – Page 22
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NewsSweeping up dust to detect emerging viruses
Gathering dust from buildings may hold promise as a more efficient way to track viral outbreaks in indoor settings, according to a new study. After collecting nearly 30 vacuumed dust samples from different buildings, researchers simultaneously identified the presence of 54 distinct viruses.
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NewsTiny ocean life helps scientists estimate whale prevalence off the California coast
Using an innovative alternative method, researchers examined microbial “ecological habitats” as highly accurate predictors of how many filter-feeding whales were occupying the California coast between 2014 and 2020 from San Diego to Morro Bay.
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NewsNewly discovered microbial world helps protect developing lobsters
As ocean temperatures rise and marine ecosystems change, scientists are working to understand how valuable species like the American lobster will respond. Scientists suggest one source of resilience may come from the microscopic bacterial communities living on lobster embryos.
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NewsHidden small RNA determines if cholera bacterium can infect humans
Scientists have uncovered what gives Vibrio cholerae, the bacterium that causes cholera, the ability to colonize the human gut. They found that a small RNA embedded within another gene controls where cholera thrives, a discovery that could improve prediction and prevention strategies.
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NewsAntibiotic proves ineffective in treating wheezing in young children in the emergency room
A study has shown that giving the antibiotic azithromycin did not help preschool children seen in the hospital emergency room with bouts of severe wheezing. It provides more definitive answers to longstanding questions and inconclusive studies about the role of some types of bacteria in wheezing and asthma.
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NewsProtein engineering and testing condensed to a single day
Engineered proteins must be created in the real world and tested for performance - a labor-intensive process that involves constructing the DNA instructions for each protein in yeast or bacteria and growing individual clones for protein production and testing. Researchers say they have condensed the time-intensive protein building and testing process to just 24 hours.
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NewsOne-fifth of pregnant women aren’t properly screened for syphilis
A new study found that 1 in 5 pregnant women in Ontario did not receive timely syphilis screening, which is critical for preventing syphilis infection in newborns. Sociodemographic and behavioural risk factors associated with being screened late may be related to an increased likelihood of inadequate prenatal care access.
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NewsHidden viruses reshape one of Earth’s largest carbon systems, study finds
Viruses play a far more active role in Earth’s carbon cycle than previously understood, according to new research that reveals how they infect and control microbes responsible for carbon production in some of the planet’s largest, darkest ecosystems.
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NewsMpox study reveals hidden infections may fuel spread
A study shows that in mid- to late 2024, mpox was far more common among men who have sex with men than previously thought. Individuals without symptoms accounted for most infections and likely played a prominent role in transmission, contrary to prior assumptions that people had to be symptomatic to spread the disease.
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NewsSynthetic biology leads to recyclable textiles: Engineered protein fibers for a cleaner future
Scientists have created protein-based materials, which are produced in bioreactors using genetically engineered microbes. These materials can be readily recycled after use and remade into the same fibers over multiple cycles. In addition, any microparticles, if released from these fibers during washing, would be biodegradable.
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NewsResearchers link human molecular, microbial diversity with geography, ethnicity
Researchers at the Stanford School of Medicine have found that ethnicity and geography may influence human molecular makeup — from metabolism and immunity to gut microbiota and biological aging. The findings, which published in Cell on May 14, illuminate the complex interplay between genetics and the environment, ...
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NewsReview highlights antimicrobial peptides as cross-seeding modulators at the neurodegenerative–infectious interface
In a comprehensive review, researchers synthesize emerging evidence that antimicrobial peptides and disease-related amyloids can influence one another through heterotypic cross-seeding interactions.
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NewsUnderstanding and exploiting tuberculosis superspreading
A new perspective piece introduces the idea of “superspreading niches”, specific parts of community contact networks where highly infectious individuals intersect with highly susceptible contacts, as a key framework for understanding TB superspreading and designing new TB control interventions.
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NewsStudy is first to detect and track multiple cancer-causing viruses in wastewater
A study is the first comprehensive approach to detect all known cancer-causing or oncogenic viruses concurrently by analyzing viral genomes in wastewater. The work shows that it is feasible to monitor the presence and levels of cancer-causing viruses, enabling the possibility of public health interventions in the future.
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NewsNew report charts path for climate-disease preparedness
Changing patterns of temperature and precipitation, along with sea level rise and more extreme weather events, are impacting the ecology, evolution, distribution and prevalence of infectious disease reservoirs, hosts, vectors and pathogens. As a result, new diseases are emerging, and others are reappearing in regions where they were once uncommon.
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NewsBacteria may hold a cancer treatment clue
A review argues that tumors with reproducibly poor prognosis outcomes may share an overlooked feature: bacterial infection within the tumor microenvironment. These bacteria may weaken treatment by altering local immunity, damaging tissue structure, and even inactivating chemotherapeutic drugs.
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NewsMeasuring SARS-CoV-2 diversity in wastewater improves disease surveillance
Tracking the genetic diversity of SARS-CoV-2 in wastewater, rather than just viral abundance, dramatically improves the ability to monitor and predict COVID-19 outbreaks, researchers report.
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NewsTraditional dengue alerts are missing the mark as Vietnam’s climate shifts—researchers propose a one health solution
For decades, Vietnam’s dengue surveillance relied on a straightforward logic: when cases exceed the five-year average by a sufficient margin, sound the alarm. That logic is now breaking down.
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NewsPublic housing mold intervention program reduces asthma-related ED visits
The New York City Housing Authority developed a mold-removal program in response to a 2013 class-action lawsuit filed by residents suffering from asthma due to mold in their apartments. Without Mold Busters, residents would have experienced 25 per cent more asthma-related emergency department (ED) visits.
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NewsResearchers find increased bacteria infection in patients with chronic lung disease
A new study has found that people with bronchiectasis and chronic sinus disease were more likely to have mucus samples that tested positive for Pseudomonas aeruginosa. It suggests that doctors caring for patients with bronchiectasis may need to pay closer attention to sinus disease and bacterial testing.