Thursday, July 09, 2026

 

Hantavirus on a nature cruise and the risk of a pandemic



JAMA Internal Medicine




About The Article: This Viewpoint discusses the alarm surrounding the hantavirus cases first reported in May 2026 and burgeoning threats, such as Ebola virus. 


Corresponding Author: To contact the corresponding author, Daniel J. Morgan, MD, MS, email dmorgan@som.umaryland.edu.

To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/

(doi:10.1001/jamainternmed.2026.3600)

Editor’s Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.

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US Parents direct more threats toward school administrators than teachers


Study finds verbal aggression against school staff is prevalent but largely unreported




Ohio State University






COLUMBUS, Ohio — In K-12 schools across the country, administrators are tasked with keeping everyone safe. New research shows they may be the most in need of protection.

In a study published this week in Psychology of Violence, researchers surveyed school personnel prior to the onset of COVID-19, during the height of COVID restrictions and after most restrictions had been lifted, and their findings surprised them: Administrators were more likely than teachers or school mental health professionals to experience verbal and threatening aggression from parents. After restrictions lifted, 77% of administrators reported such experiences, nearly 3.5 times the rate reported by teachers.

The research was led by Eric Anderman, a professor of educational psychology and vice provost for regional campuses at The Ohio State University. He and colleagues have conducted a number of related studies as members of the American Psychological Association (APA)’s Task Force on Violence Against Teachers and School Personnel.

“We didn't fully expect such a pattern to emerge,” Anderman said. “A lot of us went in with an assumption, including me, that it would be mostly the teachers — they’re the ones who have the most direct contact with students every day.”

The data show that parental aggression against school personnel never went away, even during the height of COVID restrictions. When most schools switched to remote learning, 42% of administrators still reported experiencing verbal or threatening aggression from parents, and rates climbed even higher after schools reopened.

For Anderman, the issue is personal. As a high school teacher early in his career, he experienced a verbal threat from a student and didn’t feel supported by his school’s administration. “That always stuck with me,” he said. “Whenever I write about it, it resurfaces.”

Anderman’s research focuses primarily on academic motivation, which is how he became involved with the APA Task Force nearly two decades ago. Past research from the group found that 49% of teachers nationwide considered quitting or transferring jobs as the result of violence and threats made against them, and that violence against teachers is higher in schools that focus on grades and test scores than in schools that emphasize student learning. 

Although school personnel experience physical assaults, the new study focused on verbal aggression and threats, which a 2022 meta-analysis found to be more commonplace in schools. The researchers measured eight specific types, including obscene remarks or gestures, intimidation, identity-based slurs, verbal threats, bullying, public humiliation, cyberbullying and sexual harassment.

After pandemic restrictions were lifted, more than 1 in 4 teachers said a parent had publicly humiliated them, and more than 1 in 4 reported being cyberbullied. For administrators, more than 4 in 10 were verbally threatened, and around 1 in 5 reported being publicly humiliated or cyberbullied.

The scope of the problem becomes clearer when educators are given the opportunity to describe their experiences anonymously. In earlier research, the task force collected around 3,000 written accounts from teachers describing the worst incidents they had experienced.

“The stuff they told us — you can’t make this stuff up,” Anderman said. “People said things like, ‘Thank you for asking. Nobody ever asked.’ It was therapeutic for some of them.”

Despite how common these experiences are, Anderman describes them as a “silent epidemic” because there is currently no national system for tracking or reporting aggression against school personnel, and it receives little media attention. In addition, many educators don’t report incidents for fear of looking weak or incapable of managing their classrooms. This silence has consequences for the quality of education students receive and for the ongoing national teacher shortage.

There’s good news, though. The study found that maintaining positive relationships between parents and school personnel and providing support for teachers, administrators and mental health professionals at the school and community levels all help reduce parental aggression. School level factors, such as strong administrative support and effective disciplinary policies, were associated with less aggression at all three time points, and community-level factors, such as perceived district investment in education, also made a difference.

The researchers recommend implementing tiered systems of support for all school personnel — including classroom, school and community training — to foster a healthier, safer climate for everyone. The study also noted the importance of proactive and positive communication from school employees to parents. This resonated with Anderman, who still remembers the time his ninth-grade Spanish teacher called his mother — not to report a problem, but to say he was doing well in class. “It made my day,” he said. “But it’s the only time I ever remember it happening.”

Co-authors include Andrew Perry, Hyun Ji Lee and Adriana Martinez-Calvit from Ohio State; Susan D. McMahon from DePaul University; Frank C. Worrell from the University of California, Berkeley; Linda A. Reddy from Rutgers University; Andrew Martinez from Hunter College; Dorothy L. Espelage from the University of North Carolina, Chapel Hill; and Ron A. Astor from the University of California, Los Angeles. The research was supported by the American Psychological Association.

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Contact: Eric Anderman, anderman.1@osu.edu

Written by Elizabeth Weinstein, weinstein.137@osu.edu   

 

Neuroscape and Samsung partner to study cognitive change across the lifespan



Neuroscape






An innovative new study from the Neuroscape research center at UCSF, and consumer electronics giant Samsung seeks to understand decade-by-decade changes in brain health.

The Neuroscape Technology for Aging Health - Digital Approaches (TAH-DA) longitudinal study, seeks to identify biometric predictors of cognitive decline over the course of a year, using Samsung wearable technology. 

Samsung fosters innovation and transformational health research in collaboration with leading institutions to explore new health technologies and a novel prescriptive on wellness. The TAH-DA study is another example of Samsung’s work to understand the unique connection between the brain and wellness. 

The study is part of Samsung’s Open Innovation Initiative, a strategic program designed to accelerate innovation by collaborating with leading universities, hospitals, research institutions, and startups, to support the development of next-generation digital health solutions to enhance healthcare, deepen our understanding of the mind-body connection, maximize the wellness potential of personal devices, and support the development of cutting-edge technologies.

The TAH-DA study began recruiting participants from across North America in early 2026, with a goal of enrolling 200 adults from each decade of life between the ages of 40 and 89. After enrolling in the study, participants receive Samsung’s Galaxy Watch to record for one year a suite of health metrics throughout the day and at night while they sleep, as well as a Galaxy Tab A9 that participants will use to self-assess and train their cognitive control abilities.

The Galaxy Watch measures a comprehensive set of health metrics, including heart rate, ECG (electrocardiogram), blood pressure, blood oxygen levels, and body composition (BIA). It also offers sleep and skin temperature tracking, as well as daily activity tracking, such as step counts. This data will be used to develop unique insights and deployable algorithms to track and predict changes in brain health over time. Additionally, participants will engage in a series of surveys, digital cognitive assessments, and Neuroscape-developed digital interventions on a Samsung tablet. 

"With this rich dataset, we will be able to determine which passive, biometric measures are associated with cognitive assessments, as well as test the effects of our evidence-based, digital interventions in boosting cognitive function in adults across their lifespans," says Joaquin A. Anguera of Neuroscape. “Unlike traditional neuroscience studies, which often use highly controlled, simplified stimuli and static laboratory environments, modern approaches look to study human cognition in real-world contexts and in real-time.” 

Mobile phones and wearables have become essential in daily life, capturing detailed information about users’ habits and behaviors. Device data captures subtle routine changes with remarkable high sensitivity. Recognizing this potential, researchers at Samsung and UCSF hope to develop digital biomarker technology designed to support tracking changes in cognitive function through this partnership.

"We are thrilled to partner with Samsung on this research project, which combines its wearable technology and tablets with our software to study cognition in the real world,” says Adam Gazzaley, executive director of Neuroscape. "This academic-industry partnership is driving the most technologically ambitious remote trial we’ve ever attempted and will generate a unique perspective on human aging.”

How the study will work

The remote study will use the Neuroscape-developed clinical trials platform, Nexus, which enables online deployment of all study-related activities, including enrollment, consent, diagnostic assessments, and digital interventions. The project will also include partnerships with Helpsquad (providing participants access to both an AI chatbot and a virtual assistant) and didit.me to assist with identification verification during the enrollment process.

  1. Interested participants sign up on the study website: neuroscape.ucsf.edu/tahda-study

  2. Once enrolled, researchers will randomly assign participants to either an intervention group or a control group and will send each participant a Galaxy Watch and a Galaxy A9 Tab.

  3. Once received, tablet-based assessments and the intervention phase will begin. During this phase, participants will be required to engage in cognitively challenging games designed and developed at Neuroscape, which have already shown positive influences on cognitive abilities that diminish with age. 

  4. Participants will also complete a set of custom-built digital cognitive assessments at three time points: before the study, after completion of the intervention, and 9 months later.

"We are happy to have Neuroscape's digital interventions combined with our technology to enhance the digital health ecosystem and create new approaches to well-being," says Praveen Raja, Vice President of Digital Health Samsung Research America. "Using biometric data from our Galaxy Watch, we are excited to support the identification of behavioral and physiological predictors of cognitive decline, while looking toward digital interventions for improving cognition."

"With this new study, we hope to raise the bar for remote trials," says Theodore Zanto of Neuroscape. "Building off our past work, we continue to push the bounds of neurotechnology, looking to create neuroscience-based predictors of cognition across the adult lifespan, as well as new digital treatments."

To learn more about the TAHDA study, go to: neuroscape.ucsf.edu/tahda-study.

 

Random sounds played whilst sleeping impair memory formation





University of Freiburg





For several years now, sleep research has been focusing intensively on the question of whether targeted auditory stimulation during sleep can improve the consolidation of new memories. A research team in Freiburg led by the neuropsychologists Prof. Dr Monika Schönauer and Dr Nora Roüast has discovered in a new study that auditory stimuli during sleep can also have undesirable consequences.

Randomly played sounds during sleep impair the consolidation of new memories because they disrupt deep sleep and thus alter the propagation of slow brain waves. The latter are considered a key component of memory formation because they significantly promote the exchange of information between different regions of the brain. “Our findings show that randomly played sounds can disrupt important processes during sleep. For memory formation, it is not only crucial that slow brain waves occur, but also how they propagate throughout the brain. It is precisely this propagation that is impaired by the sounds,” says Roüast.

Slow brain waves reach fewer regions of the brain

Twenty adults took part in the study. On two test days, they learnt both factual knowledge and a sequence of finger movements before taking a three-hour afternoon nap. Whilst they slept, the researchers recorded their brain activity and sleep stages using electroencephalography (EEG). On one test day, the participants heard randomly played sounds during their sleep in the form of a sequence of small clicks; on the other, it remained silent. After the nap, the researchers assessed how well the participants could recall the information they had learnt.

The randomly played sounds hardly shortened the total duration of sleep at all. Instead, they primarily altered the composition of sleep: the participants spent significantly less time in deep sleep and more time in lighter sleep stages. Furthermore, slow brain waves occurred less frequently and reached fewer brain regions. It was this altered spread in particular that was decisive for the significantly poorer memory performance. “Precisely because intensive research is currently being carried out into improving memory processes or using them therapeutically with the aid of sleep-based stimulation, our findings show that we must carefully consider potential side effects. Even the sounds themselves that have no melody or verbal content can influence and disrupt sleep physiology and the complex processes underlying memory formation,” emphasises Schönauer.

 

For more information:

Original publication: Roüast, Nora M., Kumral, Deniz, Gais, Steffen, Schönauer, Monika. (2026). Random auditory stimulation during sleep disturbs traveling slow waves and declarative memory. iScience, DOI: 10.1016/j.isci.2026.116601.
To the original publication: https://www.sciencedirect.com/science/article/pii/S2589004226019760?__cf_chl_f_tk=Yy7lHz0avlSRiVTnpkPNpDNGvKqhyeOrQ7s15SXHiI4-1783087729-1.0.1.1-.zah8LbiHk9HOpUX.0pgxVPjYBdYGHopARNICi9CeaI

 

US Medicare prescriptions for Wegovy jumped after approval for heart disease





University of Southern California

Medicare Wegovy Use Rose After Approval for Heart Risk, but Remained Low 

image: 

Medicare fills of Wegovy increased nearly sevenfold in the six months after the weight-loss drug was approved to lower heart risk.

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Credit: USC Schaeffer Center for Health Policy & Economics






Medicare prescriptions for Wegovy increased sharply after the program started covering the anti-obesity medication to prevent heart problems, but just a fraction of beneficiaries likely eligible received the treatment, according to new research from the USC Schaeffer Center for Health Policy & Economics.

Medicare covers GLP-1s for Type 2 diabetes but is prohibited from paying for the drugs to treat obesity. However, in March 2024 Medicare clarified that health plans administering the Part D benefit could cover Wegovy to reduce the risk of heart complications in beneficiaries with obesity and heart disease after the U.S. Food and Drug Administration (FDA) expanded approval of Wegovy for that purpose.

In the six months following this increased access, the researchers found:

  • Fills of Wegovy increased 136% compared to the previous six months across all coverage sources—Medicare, Medicaid, private insurance and cash-pay—and grew significantly faster than other GLP-1s sharing the same active ingredient, semaglutide. The new cardiovascular indication drove an estimated 593,000 additional Wegovy prescriptions.
  • Medicare fills of Wegovy increased 598%, far outpacing growth in other coverage sources. This increase signals pent-up demand among Medicare beneficiaries and shows how FDA approvals of GLP-1s for indications beyond obesity can expand access.
     
  • However, six months after the Medicare announcement, less than 1% of the estimated 3.6 million beneficiaries thought to be eligible based on their weight and cardiovascular health had filled a Wegovy prescription. Several factors could explain the low uptake: Part D plans were likely hesitant to add the costly drugs to their formularies, patients could have faced barriers like high-cost sharing or other restrictions on use, and providers may have had limited awareness of the changes.

Medicare is now aiming to broadly expand access to GLP-1s for weight loss through a temporary pilot program, known as Medicare GLP-1 Bridge, launched this month. However, the pilot, largely funded by the federal government, is set to expire after 2027, and health insurers have balked at a longer-term program that would shift costs onto them.

Regardless of the Bridge program’s future, Medicare will continue to allow coverage of weight-loss drugs for other FDA-approved indications beyond obesity. In addition to cardiovascular disease, Wegovy has also been approved for the serious liver disease MASH, while other GLP-1s have been approved for conditions including obstructive sleep apnea and chronic kidney disease. Researchers continue to study GLP-1s, which were first approved for Type 2 diabetes, for a range of other conditions.

"Although our study shows that federal policy change can help increase access to GLP-1s for heart disease, we still have a long way to go to ensure that patients can access and afford these medications as their clinical indications keep expanding," said first author Christopher Scannell, a nonresident scholar at the USC Schaeffer Institute and senior research associate at the USC Mann School of Pharmacy and Pharmaceutical Sciences.

About the study

The study was published July 9 in the American Journal of Managed Care. Other authors are John Romley, Rebecca Myerson, Dana Goldman and Dima Mazen Qato.

 

The color of penguin poo: Satellites reveal the chilling truth of global warming’s impact on an iconic polar species



Scientists study poop patterns of Adélie penguin colonies across all of Antarctica over a 30-year span using Landsat satellite images, a first for capturing food-web and population trends at continental and decadal scales relative to climate change




University of California - Santa Cruz

Adélie penguin colony 

image: 

Nesting Adélie penguins on Antarctica's King George Island

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Credit: Michael Polito, UC Santa Cruz





SANTA CRUZ, Calif. – Scientists from a handful of universities across the country have made innovative use of satellite images from NASA: to determine the diet of Antarctic Adélie penguins across the continent by studying their icy feces with the fidelity and frequency that could only be captured by space technology.

The team, whose new study appears in Current Biology, found satellite images to be an ideal way to study colonies across the continent and over the span of decades to figure out what the mid-sized, tuxedo-patterned seabirds eat. This provided measurable insights into how their diets and population correlate to climate-change impacts like shrinking sea ice.

What they found is a concerning trend where global warming is once again threatening an iconic polar species: Over a 30-year period, Adélie penguins in places with more sea ice ate more fish. In years and places with less sea ice, they relied more heavily on krill. 

The study also found that diet was linked to long-term changes in penguin populations. Colonies with more krill-based diets were more likely to be declining than colonies with more fish-based diets. Previous research has shown that chicks fed more fish tend to be larger and have better survival prospects than chicks fed more krill. In areas where fish are less available because of a decline in sea ice, penguins may be forced to rely more heavily on krill.

“Antartica has experienced rapid environmental change in recent decades, and this approach gives us a new and powerful tool to learn how it has affected penguins,” said co-author Michael Polito, a professor of ocean sciences at the University of California, Santa Cruz. The study, titled “Space-based monitoring of penguin diet links sea ice, food webs, and population change,” was led by Clemson University in collaboration with researchers from Stony Brook University, UC Santa Cruz, NASA, and other institutions. 

“It’s exactly what it sounds like,” Polito said. “We spied on penguins from space by using satellite images to figure what they eat all around Antarctica to help  explain their diet and population response to recent climate change.”

Decoding guano to map diet patterns

In the study, the researchers used the spectral signature—essentially, a quantitative measure of color across visible and infrared wavelengths—of guano to infer what the penguins had been eating. Based on the color of the guano, the team reconstructed Adélie penguin diets across nearly the species’ entire global range from 1984 to 2013.

Clemson researcher Casey Youngflesh collected samples at penguin colonies in the field and then analyzed the spectral properties in a lab. Polito then used stable isotope analysis of these same guano samples to determine where the penguins’ diet fell on a spectrum from krill to fish. Those data allowed the team to build a model connecting guano spectra to diet and apply that model to satellite imagery from Landsat, a long-running NASA Earth-observing program.

Youngflesh, an assistant professor of biological sciences at Clemson, said the study is the first use of satellite observations to capture food-web dynamics at continental and decadal scales, adding that this work points to a broader future for satellite-based wildlife monitoring.

“Satellites enabled us to do something that would otherwise be impossible,” Youngflesh said. “The innovation wasn’t the satellite technology itself, but the ability to leverage these decades of satellite imagery with modern geochemical, statistical and computational tools. No one intended for these satellites to be used to monitor penguins, but now we’re able to use them in these novel ways.”

The wide distribution of Adélie penguins and the relative ease with which they can be monitored from satellites make them useful indicators of broader Antarctic ecosystem change.

The challenges of Antarctic research

Until now, studying that process across the entirety of Antarctica has been difficult because the continent is vast, remote, and logistically challenging to work in. Researchers can visit some penguin colonies, collect samples and monitor populations, but it is not feasible to sample every colony repeatedly across decades.

Adélie penguins are one of the most numerous predators in Antarctica, but they depend on a relatively small number of prey species to survive. During the breeding season, their diet consists primarily of Antarctic silverfish and krill, a small, shrimp-like crustacean. Besides being less nourishing than fish, Polito said krill itself is becoming less abundant in some parts of Antarctica because of climate change and increased consumption by recovering seal and whale populations. 

In the years since the end of this study period, large-scale declines and record lows in Antarctic sea ice have been observed. If those declines continue, Adélie penguins may have to shift toward more krill-dominated diets across larger parts of their range.

“Adélie penguins are an iconic species breeding all around the continent of Antarctica,“ Polito said. “They act as a ‘canary in the coal mine’ and our study illustrates how recent warming has disrupted the Antarctic marine food web they rely on to the detriment of many of their populations.”

Satellites link sea ice to Antarctic food webs and penguin population change

Clemson University researcher Casey Youngflesh spreading out guano samples in preparation for analysis.

Credit

Casey Youngflesh, Clemson University