Monday, June 22, 2026

  

Paid paternal leave linked to better mental health outcomes for dads



Paternal leave is not just a workplace benefit, it’s a public health issue’




Northwestern University




  • Dads who took unpaid leave were 58% more likely to report anxiety symptoms compared with dads who took paid leave
  • Those who wanted to take leave but couldn’t were more likely to experience symptoms of both depression, anxiety
  • Most commonly cited obstacle to taking leave was a financial barrier

CHICAGO — A new study from Northwestern University and Ann & Robert H. Lurie Children’s Hospital of Chicago highlights the critical role paid paternal leave plays in supporting new dads’ mental health following the birth of their baby.

Using data from a large population-representative survey, the study found that when fathers do not have access to paid leave or cannot take needed time off, they face significantly higher levels of anxiety and depression.

“Bottom line, mental health and paternity leave are linked,” said corresponding author and fatherhood expert Dr. Craig Garfield, professor of pediatrics and medical social science at Northwestern University Feinberg School of Medicine and a pediatrician at Lurie Children’s. “Our findings underscore that paternal leave is not just a workplace benefit, it’s a public health issue that can deeply impact families and children.”

The study will be published June 18 in the American Journal of Public Health.

The scientists analyzed data from the 2022-2023 Ohio Fatherhood Survey (OFS), one of the most comprehensive sources on fathers’ experiences during the perinatal period in the U.S. They examined the relationship between leave status and mental health outcomes using validated screening tools for depression and anxiety. Among 4,290 new fathers in the study, 6.6% had depression and 11% had anxiety. Fifteen percent of the fathers did not take leave; 54% took paid leave; 22% took unpaid leave; and 9% took a mix of unpaid and paid leave.

A breakdown of the findings:

  • Unpaid leave is linked to increased anxiety: Fathers who took unpaid leave were 58% more likely to report anxiety symptoms compared with those who had paid leave.
  • Not taking leave strongly associated with mental health risk: Fathers who reported wanting but not taking leave were more likely to experience symptoms of both depression and anxiety.
  • Significant financial barriers: Among dads experiencing mental health symptoms, the most commonly cited obstacle to taking leave was a financial barrier (approximately 75% of those with depressive symptoms and 71% of those with anxiety symptoms).

The transition to parenthood is a well-documented period of emotional and psychological vulnerability for mothers, but this study highlights how fathers are also at risk. Despite increasing recognition of fathers’ roles in early child development, policies and workplace norms often lag in addressing their needs. This study adds to a growing body of evidence suggesting that equitable access to paid parental leave can have far-reaching benefits, including:

  • Improved mental health for fathers
  • Stronger parent-child bonding
  • Greater family stability and well-being

What this means for policymakers and employers

The results point to actionable opportunities for policymakers and employers alike. Expanding paid parental leave programs, addressing financial barriers and normalizing dads’ use of leave could have measurable impacts on population health, Garfield said.

“As the U.S. continues to discuss how best to support families from day one, paid paternity leave is one valuable tool to use,” Garfield said. “Our results show that paid leave can help new dads as they transition into fatherhood, giving them time and resources to get off on the right foot.”

Plans to study more nationwide populations

This study builds on earlier research from Garfield. A previous study published in 2025 found 64% of fathers reported taking less than two weeks of leave after the birth of their child, and only 36% of dads reported taking more than two weeks of leave. That study used data from the Pregnancy Risk Assessment Monitoring System for Dads (PRAMS for Dads survey), which Garfield created and first piloted in Georgia in 2018. PRAMS for Dads will soon be fielding survey responses in 11 states, which will help further this work nationally, Garfield said.

“Mothers and children are certainly important. But, as we approach Father’s Day, to ensure the best outcomes for our children and families, we need to think about families holistically and how they function in today’s society. States across the country recognize a gap in this essential perinatal public health data and are excited to have a solution.”

The study is titled, “Paternity Leave Status and Mental Health Symptoms Among Ohio Fathers: A Population-Representative Survey, 2022–2023.” Clarissa Simon is a co-author. The study also was conducted in partnership with the Ohio Colleges of Medicine Government Resource Center.

Videos help new dads learn about infant safety before bringing newborn home



Hospital newborn nursery shown to be a feasible setting to engage fathers in preventing child injury




Ann & Robert H. Lurie Children's Hospital of Chicago






Brief videos shown in the hospital newborn nursery may be an effective way to educate first-time fathers on infant care topics, such as safe sleep, infant crying and car safety, according to a pilot study published in the journal Pediatrics Open Science. These topics were selected as common parental knowledge gaps and successful targets of previous educational interventions for mothers.

“New fathers often report feeling like bystanders in healthcare settings, with parenting supports primarily focused on the mother from pregnancy through the postpartum,” said Mikaela Thompson from Northwestern University Feinberg School of Medicine, who led the study supervised by Craig Garfield, MD, an expert on fathers’ role in child development, from Ann & Robert H. Lurie Children’s Hospital of Chicago. “Our study recognizes the importance of involving fathers in child health, and especially in infant injury prevention, from the very beginning of becoming a father.”

Previous research has shown that unintentional injuries, including those related to unsafe sleep, frustration with crying and poor car seat safety, are the leading causes of death in young children.

“The videos in our study on key injury prevention topics are a novel educational intervention soon after infant birth that offers unique opportunities to reach fathers who may not be able to come to infant healthcare visits,” explained Dr. Garfield, also Professor of Pediatrics and Medical Social Sciences at Northwestern University Feinberg School of Medicine. “We show that the newborn nursery is indeed a viable setting for father-focused instruction—fathers may actually be looking for this sort of information at this time.”

The study recruited 167 first-time fathers of full-term infants. On enrollment, participants completed an initial survey and viewed brief evidence-based videos that featured a real father and his 2-week-old infant, with educational content presented by a pediatrician or a childhood injury-prevention expert. Participants completed a pre-and post-viewing knowledge survey, and additional knowledge and behavior questions one week and one month after discharge.

Researchers found that fathers’ knowledge about safe sleep and infant crying improved significantly after the video intervention, but these gains were not fully sustained post-discharge. Knowledge about the use of a rear-facing car seat was high, with safe riding in the appropriate car seat universal among the study participants.

“Our finding suggests that at-home reinforcement or ‘booster sessions’ might be needed to maintain learning and support behaviors, especially in the first year,” said Dr. Garfield. “Text messaging might help support study retention. In the future, video-based, father-focused intervention could be expanded to other clinical settings, such as the neonatal intensive care unit and well-child visits.”

Funding for this project came from an Ascend at the Aspen Institute Impact Grant.

Ann & Robert H. Lurie Children’s Hospital of Chicago is a nonprofit organization committed to providing access to exceptional care for every child. It is the only independent, research-driven children’s hospital in Illinois and one of less than 35 nationally. This is where the top doctors go to train, practice pediatric medicine, teach, advocate, research and stay up to date on the latest treatments. Exclusively focused on children, all Lurie Children’s resources are devoted to serving their needs. Research at Lurie Children’s is conducted through Stanley Manne Children’s Research Institute, which is focused on improving child health, transforming pediatric medicine and ensuring healthier futures through the relentless pursuit of knowledge. Lurie Children’s is the pediatric training ground for Northwestern University Feinberg School of Medicine. It is ranked as one of the nation’s top children’s hospitals by U.S. News & World Report.

Thinking of giving a DNA kit for Father’s Day? Psychology researcher warns of ‘unexpected outcomes’



Taylor & Francis Group






DNA testing kits are often gifted for Father’s Day, Christmas and special occasions. The idea of learning more about yourself and unearthing some long-forgotten family history is certainly appealing for many, but a psychologist has warned that these presents can come with profound psychological implications.

At least 30 million people have already tested their DNA through genealogical services, with the market valued at $3.5 billion USD in 2022.

But according to Dr Susan Moore, a retired Australian university researcher in social and developmental psychology, the decision to gift, or take, a DNA test requires more consideration than most people realise.

The risks and rewards

In her new book The Psychology of Genealogy, Dr Moore explores the complex emotions behind DNA testing, drawing on research and real-life cases to reveal the rewards and risks.

“Should you give DNA kits as gifts? It can be fun; it can be risky,” Dr Moore says. “Do first think carefully about how your intended recipient might cope with unexpected outcomes.”

Dr Moore warns that the psychological stakes are higher than many realise. DNA tests can uncover family secrets, reveal misattributed paternity, expose donor conception, and even connect people to hundreds of previously unknown half-siblings – all scenarios that have become increasingly common as databases expand.

Considerations to bear in mind

Moore outlines several psychological considerations that make DNA testing far more complex than a simple curiosity exercise.

“Hobbyist family historians are uncovering joyful and inspiring stories of the past as well as sad and unsettling secrets of their ancestry, Dr Moore explains.

“Records and DNA matches provide boosts, challenges and even threats to one’s sense of self, and this is occurring at unprecedented levels.”

For some, unexpected results can fundamentally challenge their sense of self and family belonging, something psychologists call ‘identity disruption’. The book references cases where individuals discovered their biological father was actually their mother’s fertility doctor, or where ‘late discovery’ of adoption or donor conception occurred through DNA testing.

“At the personal level, these may be findings that cause you great distress, that destabilise your sense of who you are, that initially at least, you would have preferred not to know. Once known however, they cannot be unknown,” Dr Moore explains.

“While some will be able to integrate this new information into their understanding of selfhood, family relationships and belongingness, others will struggle with acceptance, trust and feelings of betrayal.”

Beyond personal revelations, there are also legitimate worries about data security. In 2023 hackers accessed DNA data of 7 million users of one of the most popular DNA testing providers, and the company’s subsequent financial troubles raised questions about what happens to genetic data if companies fold.

Why do these tests appeal to us?

Despite the risks, many of us are drawn to these tests as they appeal to what Dr Moore describes as fundamental human needs. She explains that family history exploration, including DNA testing, fulfils deep psychological drivers.

This includes the search for identity, and influences on our character. Understanding family history strengthens social identity and creates a sense of belonging to something larger than oneself.

It also provides intellectual challenge and a sense of purpose, and Dr Moore suggests curiosity itself is a main driver.

“Curiosity is a great motivator. How exciting it can be to discoverer the identity of an ancestor, solve a family mystery, prove or disprove family ‘legends’ or discover previously unknown living relatives,” she explains.

“Indeed, genealogists regularly report elation and joy as they unearth lost relatives, discover the identity of a ‘missing’ ancestor, or otherwise break down ‘brick walls’ (genealogical puzzles that seem to resist solutions due to missing, inaccurate or hard-to-access records).”

To test or not to test

So, should you gift that DNA kit this Father’s Day? Dr Moore offers nuanced guidance to anyone considering buying a test for themselves or a loved one.

She explains: “Yes, if you want to explore your ancestry further, and you have the time and patience to do some reading and learning – first about how to make the most of your data, and second about how to interact respectfully and ethically when contacting matches.”

But she’s clear about when to reconsider.

She warns: “No, unless you’re prepared for surprises, some of them perhaps unpleasant, or if you’re very worried about privacy breaches.”

The key, Dr Moore suggests, is to have an honest conversation before gifting. Does Dad actually want to know? Is he prepared for unexpected discoveries? Has he considered the privacy implications?

For those who do decide to test, Dr Moore emphasises the importance of approaching results with support systems in place and realistic expectations about what DNA can and cannot reveal.

“DNA gives you some new and interesting clues to your family tree structure, but the hard work of making sense of those clues must still be done,” she explains.

 

Shining light into unhatched eggs could allow for chicken “gender reveals”




Cell Press

Eggs under different lighting 

image: 

The left panel shows a white egg under ambient lighting; the center panel shows the same egg after removing the contents; and the right panel shows an intact, white-shelled egg (with yolk). This figure clearly demonstrates the integrating sphere effect and homogenization of light, as the even the empty shell appears uniformly illuminated - without a scattering material inside.

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Credit: Vamshi Damagatla





Scientists have demonstrated a non-invasive technique that uses light to reveal the hidden contents of chicken eggs, potentially helping to curb the meat industry’s practice of killing billions of male chicks at birth. The study, publishing June 19 in the Cell Press journal Newton, found that when light enters an intact bird eggshell, it bounces back and forth many times, with photons traveling as far as two meters within a chicken egg’s tiny, four-centimeter interior. By illuminating the optics of chicken eggs, researchers may be able to determine the sex of a developing embryo within, assess the quality of an egg’s interior, and determine whether intact eggs have been fertilized. 

“This previously unobserved phenomenon might help to investigate the content of the egg non-invasively even during the embryo development in fertilized and incubated eggs, addressing the ethical dilemma of culling male chicks” says Lennard van den Tweel, a researcher with the hatchery technology company HatchTech B.V. in the Netherlands and an author of the study. 

Since male chicks cannot lay eggs and don’t grow fast enough to be profitable, over 300 million are slaughtered shortly after birth each year in European hatcheries alone. The practice is widely opposed by animal rights advocates, with many countries pushing for laws to end the practice.  

Optical spectroscopy techniques that non-invasively reveal a specimen’s physical, chemical, or structural properties using light have traditionally been used in medicine, including for mammography and to monitor the function of the lungs and brain, as well as to address agricultural issues, including measuring fruit and wood, and environmental applications such as snow monitoring. 

While such light-driven techniques have also been used to study egg properties, “the complex way light migrates through the egg is largely ignored” says van den Tweel.  

To investigate chicken eggs’ undiscovered optical properties, the researchers measured the time it takes for light particles, or photons, in the visible and near-infrared wavelengths to travel specific distances as they migrate through whole eggs, studying the role of the eggshell as an “integrating sphere” that traps photons within the enclosed space. The team looked at the way photons behave as light passes through unbroken eggshells both before incubation and during eight days of embryonic development. 

“We were impressed by how efficiently the eggshell traps photons,” says Vamshi Damagatla, an author of the study and post-doctoral researcher at Politecnico di Milano. “Two meters is a very long pathlength, not easily matched by other natural materials. The finding of the integrating sphere effect immediately gave sense to several studies showing temporal emission tails that were initially attributed to fluorescence.” 

However, the “complex and unusual” optical properties of chicken eggs will require further research using other approaches in order for the researchers to fully “disentangle” their data and improve the sensitivity of the technique developed in this study, says van den Tweel. 

The researchers also plan to study how the photon effects they observed change throughout a chicken embryo’s developmental process and the optical properties of each individual component of the egg.  

“The highly scattering nature of the avian eggshell might have evolved to protect the embryo from ultraviolet light or reduce heat dissipation when parents are out foraging,” says Damagatla.  

### 

This work was supported by funding from LASERLAB-EUROPE, the European Union’s Horizon 2020 research and innovation program, the European Union’s Next Generation EU program, CUP, and HatchTech B.V. 

Newton, Damagatla et al., “Time-resolved diffuse optical techniques reveal the integrating-sphere behavior of intact chicken eggs” https://www.cell.com/newton/fulltext/S2950-6360(26)00156-8

Newton (@NewtonCellPress), the flagship physics journal from Cell Press, publishes the most influential advances in all areas of physics, both fundamental and applied. A sibling journal to Cell, Joule, and Chem, Newton’s mission is to support excellence in physics research. Visit https://www.cell.com/newton/home. To receive Cell Press media alerts, contact press@cell.com

 

Oropouche virus has already infected more than 5 million people in Brazil, study suggests



The authors warn that strategies to combat the vector, the gunpowder midge, must differ from those used against Aedes





Fundação de Amparo à Pesquisa do Estado de São Paulo






The recent Oropouche virus outbreak in 2023 drew attention in Brazil and other Latin American countries not only because of its scale – with more than 30,000 cases recorded nationwide – but also because of the first confirmed death in the country caused by the disease and its rapid spread to all states, extending beyond the Amazon region. In light of this situation, the World Health Organization (WHO) expressed concern earlier this year and called for the accelerated development of prevention and control tools against this pathogen, which was virtually unknown until then.

Two studies published in the journals Nature Medicine and Nature Health have shown that the impact of the Oropouche virus is much greater than official data suggests. Using mathematical calculations, historical data, and blood bank analysis, the researchers estimate that since 1960, the virus has infected approximately 9.4 million people in Latin America and the Caribbean. In Brazil alone, there have been approximately 5.5 million cases.

The disease causes fever and symptoms similar to dengue. It can lead to serious complications, including neurological problems such as meningitis and meningoencephalitis, and microcephaly in cases of mother-to-fetus transmission.

“We’re facing a disease of much greater magnitude than previously imagined, which requires greater attention. We estimate that one in every thousand diagnosed cases progresses to serious complications such as neurological disorders, microcephaly, miscarriages, and liver complications, raising the priority level for public health,” says José Luiz Proença Módena, coordinator of the Laboratory for the Study of Emerging Viruses (LEVE) at the State University of Campinas (UNICAMP) and co-author of the studies, which were supported by FAPESP

The research was funded by the National Council for Scientific and Technological Development (CNPq), which is affiliated with Brazil's Ministry of Science, Technology, and Innovation; the Todos Pela Saúde Institute; the U.S. National Institutes of Health (NIH); and the British philanthropic organization the Wellcome Trust.

Manaus, the epicenter of the crisis

An estimated 300,000 people in Manaus, the largest metropolis in the Amazon region, were infected between 2023 and 2024 – nearly 260 times more than the number of confirmed cases. According to the researchers, the prevalence of antibodies against the virus increased from 11.4% in November 2023 to 25.7% in November 2024, indicating widespread transmission of the disease.

“The capital of the state of Amazonas is a city with over two million inhabitants and is considered the gateway to the Amazon region. The striking underreporting occurred due to several factors, mainly because the virus circulated silently before reaching the outskirts of the urban center, with many cases being asymptomatic or mild and going undiagnosed,” says William de Souza, a professor at the University of Kentucky in the United States and co-author of the study.

This helps explain how the virus spread across all Brazilian states and neighboring countries, prompting the WHO to issue an international alert.

As for patients in remote regions of the Amazon, the researchers highlight the dynamics and logistics of the region. “Patients in remote regions of the Amazon often face travel times of more than 24 hours to reach a healthcare facility. That means that many cases likely went undiagnosed, allowing the virus to circulate silently until it reached the outskirts of a major urban center,” Souza says.

The researchers found that the Oropouche virus circulates continuously, though often at levels so low that it becomes nearly undetectable by standard surveillance systems. “In our study, we identified two major Oropouche virus outbreaks in the Amazonian capital: one in the 1980s and one in 2023. Each one infected more than 12% of the population,” says Módena.

The researchers also found that individuals infected in the 1980s could still neutralize the recent viral strain. “That suggests long-lasting cross-protection, which could inform future vaccination strategies,” Souza explains.

A bush virus

The reemergence of the Oropouche virus in 2023 confirmed its spread across the country. The state of Espírito Santo had the highest cumulative rate, with 318 cases per 100,000 people. Meanwhile, the Southeast region accounted for 57.9% of reported cases, becoming the new epicenter of the disease.

Unlike other better-known arboviruses, the Oropouche virus is transmitted by the gunpowder midge (Culicoides paraensis), causing the disease to be 11 times more prevalent in rural areas than in cities.

“Unlike Aedes aegypti [the mosquito that transmits dengue, Zika, and chikungunya], which breeds in standing water, the gunpowder midge lays its eggs in moist soil rich in organic matter. It’s a bush mosquito found in humid areas. That’s why cases are predominantly found in rural rather than urban areas,” Souza explains.

“Historically, this disease was closely linked to areas with banana and cocoa plantations, but by studying the ecology of the virus, we found that the issue isn’t the fruit itself but rather the ideal conditions of moist soil rich in organic matter. High temperatures and rainfall are also conducive to the spread of the midge,” says the researcher.

The authors emphasize that the rural nature of the disease affects public policy strategies. “Combating the disease is very different from other mosquito-borne arboviruses, which are more urban. Strategies such as fumigation in squares and on paved streets are likely ineffective against Oropouche. The gunpowder midge doesn’t live in household drains but rather in the humidity of forested areas and the vegetation on the outskirts of cities,” Souza explains.

Another important characteristic of the midge is that it is three times smaller than a common mosquito – an ideal size for getting through mosquito nets. However, the reason behind this aggressive resurgence lies not only in the climate but also in a new viral recombination, or reassortment.

In their study, the researchers identified a new viral lineage resulting from genetic reassortment, which occurs when two different viruses infect the same cell. This increases the replication capacity of the virus and makes it harder for antibodies from previous infections to neutralize it. This means the pathogen is better suited for further territorial expansion (read more at agencia.fapesp.br/52456). 

“The reemergence of Oropouche shows us that we can’t combat all arboviruses with the same approach because the gunpowder midge doesn’t follow the same rules as Aedes. That makes current surveillance against the Oropouche virus insufficient and drastically underestimates the true scale of the disease,” says Módena.

In his view, surveillance must extend beyond major cities. “Although long-term immunity appears to exist for those who have already been infected, the speed with which the virus has spread across all Brazilian states shows that the healthcare system needs new detection systems, including those focused on surveillance far from major urban centers,” he states.

The researchers emphasize the need for structural changes, such as adopting continuous serological studies, using blood banks as an early warning system, and integrating digital and genomic tools to track outbreaks and mutations. They also stress the importance of decentralizing laboratory testing and establishing active, permanent surveillance that can combine environmental, serological, and genomic data to anticipate risks and guide vaccination strategies.

About São Paulo Research Foundation (FAPESP)
The São Paulo Research Foundation (FAPESP) is a public institution with the mission of supporting scientific research in all fields of knowledge by awarding scholarships, fellowships and grants to investigators linked with higher education and research institutions in the State of São Paulo, Brazil. FAPESP is aware that the very best research can only be done by working with the best researchers internationally. Therefore, it has established partnerships with funding agencies, higher education, private companies, and research organizations in other countries known for the quality of their research and has been encouraging scientists funded by its grants to further develop their international collaboration. You can learn more about FAPESP at www.fapesp.br/en and visit FAPESP news agency at www.agencia.fapesp.br/en to keep updated with the latest scientific breakthroughs FAPESP helps achieve through its many programs, awards and research centers. You may also subscribe to FAPESP news agency at http://agencia.fapesp.br/subscribe

 

Looking at the data since 1976: low risk of global spread of Ebola disease


Most effective strategy to reduce exportation of cases: local, community-based case management, infection prevention and control at the outbreak source




European Centre for Disease Prevention and Control (ECDC)

Confirmed cases of Ebola disease exported outside Africa, 1976–May 2026 (n = 28) 

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Since 1976, the authors idnetified 28 confirmed Ebola disease cases outside Africa: 25 primary imported cases and three secondary cases infected by another patient in the United States (US) or Europe. 

view more 

Credit: Eurosurveillance





In previous Ebola disease outbreaks in Africa as well as the current outbreak of Ebola disease caused by Bundibugyo virus in the Democratic Republic of the Congo, immediate neighbouring countries are most affected when it comes to cross-border spread. As decision-makers outside Africa may be considering border and travel policies to interrupt pathways for international transmission, van Zandvoort et al. identified and analysed all known Ebola disease cases outside Africa to assess the risk of undetected Orthoebolavirus transmission outside Africa and to put it into context with possible border and travel policies. [1]

The authors searched for all laboratory-confirmed Ebola disease cases that presented outside of Africa since 1976 to date across scientific articles, public health bulletins and news reports including cases due to Bundibugyo, Ebola and Sudan virus outside Africa with exposure in Africa and subsequent travel outside the continent, as well as cases with exposure outside Africa.

Two types of exported cases: medical evacuation and latent
In total, the search yielded 28 identified confirmed Ebola disease cases outside Africa during the period 1976 to May 2026 with 25 primary imported cases and three secondary cases infected by another patient in the United States (US) or Europe.

The analysis distinguishes between two types of primary exported cases. On the one hand the analysis included people who were medically evacuated, i.e. securely transported by air ambulance for treatment outside Africa following a confirmed infection. On the other hand, latent cases were defined as people who developed symptoms during or after their return from the outbreak region on a commercial flight. While the first group represents a known risk with the possibility to mitigate transmission risk with strict measures, the second group requires diagnosis and isolation.

Most of the identified cases (27) occurred during the 2014–16 Ebola virus epidemic in Western Africa and one during the ongoing 2026 Bundibugyo virus outbreak. The authors detected four latent cases, all of which were exported during the 2014–16 Ebola disease epidemic. These four cases were among 300,000 travellers who underwent screening at the time. However, all four were asymptomatic (and hence undetectable) at the point of both exit screening and entry screening. Three were returning healthcare workers responding to the epidemic and one had helped a pregnant person obtaining medical assistance.
 

Low overall risk of exportation
Based on these data, according to van Zandvoort et al., the crude overall risk since the year 2000 was 0.17 Ebola disease cases outside Africa per 1,000 reported cases in Africa (excluding medically evacuated cases). The authors conclude “our results suggest overall that the risk of case exportations is low and could be substantially mitigated by infection prevention measures at the outbreak source and among outbreak response workers, in concert with enhanced travel screening and monitoring for returning response workers, as recommended in WHO border and travel guidance for the current outbreak.

The authors thus have the view that “as exit screening in an outbreak-affected country aims to reduce case importations in other countries, it is a shared international responsibility. This may be best supported by strengthening local capacity for such screening.”

 

----Ends----

References/notes to editors:
[1] van Zandvoort Kevin, Procter Simon R, Azam James, Sherratt Katharine, Davies Nicholas G. The risk of global Ebola virus spread is low: epidemiology of Ebola disease cases outside Africa, 1976 to May 2026. Euro Surveill. 2026;31(24):pii=2600508. Available from: https://doi.org/10.2807/1560-7917.ES.2026.31.24.2600508

[2] Ebola disease is caused by viruses belonging to the genus Orthoebolavirus, Filoviridae family. There are four orthoebolaviruses that can cause disease in humans. See more: https://www.ecdc.europa.eu/en/ebola-disease

[3] Ebola disease outbreak in the Democratic Republic of the Congo and Uganda, ECDC outbreak page. Available from: https://www.ecdc.europa.eu/en/ebola-outbreak-democratic-republic-congo-and-uganda

Hantavirus and Ebola virus disease: 10 things to know




Canadian Medical Association Journal






Two deadly infectious diseases, Ebola  https://www.cmaj.ca/lookup/doi/10.1503/cmaj.260834 and hantavirus https://www.cmaj.ca/lookup/doi/10.1503/cmaj.260789, have made headlines in recent weeks as they pose serious threats to public health. They both require rigorous infection and prevention control (IPAC) practices and often present with similar early symptoms.

Two succinct articles in CMAJ (Canadian Medical Association Journal) provide information about each disease for clinicians.

Hantavirus:

  1. A nationally notifiable disease in Canada — In Canada, 4 to 5 cases are confirmed every year and must be reported. These are usually acquired from rodents in agricultural settings in Manitoba, Saskatchewan, Alberta, and British Columbia. The Andes strain is unique as it can be transmitted from person to person.
  2. Causes 2 clinical symptoms — Strains in the Americas, which include the Andes virus featured recently in the news, cause hantavirus cardiopulmonary syndrome. The European and Asian strains cause hemorrhagic fever and kidney dysfunction. Both forms take about 2 to 4 weeks to incubate, and symptoms include fever, headache, muscle aches, and abdominal pain.
  3. Serology and polymerase chain reaction (PCR) tests are diagnostic — The National Microbiology Laboratory in Winnipeg performs these tests.
  4. Supportive treatment — As there is no specific antiviral treatment or vaccine for hantavirus, treatment is supportive to help alleviate symptoms.
  5. IPAC protocols are essential — Patients with suspected Andes strain infection must be isolated with airborne, droplet, and contact precautions, with infectious diseases experts involved and public health notified.

Ebola virus disease:

  1. Sporadic outbreaks have occurred in Central and West Africa since 1976 — There are 3 main viruses that can infect humans, and evidence suggests they come from fruit bats. Ebola virus is spread via person-to-person contact through bodily fluids like vomit, sperm, diarrhea, and blood, as well as by touching infected surfaces or objects. The current outbreak in the Democratic Republic of Congo is Bundibugyo ebolavirus, with a fatality rate of 30% to 50%.
  2. Fewer than 50% of patients have hemorrhagic symptoms — Symptoms include fever of 38°C or higher, fatigue, muscle pain, and gastrointestinal distress. Incubation is 2 to 21 days, and diagnosis is made with PCR testing.
  3. People with potential symptoms and exposure risk should be tested — People who have travelled to countries with Ebola virus disease or who have been in close contact with infected people or bats, primates, or game from the affected areas should be tested.
  4. Stringent IPAC must be used for suspected cases — Health Canada has a detailed process for screening, assessment, and IPAC precautions, which must include a fit-tested N95 respirator, face shield, gloves, and fluid-impermeable gear for full protection.
  5. Important advances in prevention and management of the disease have been made — Vaccines to prevent Zaire ebolavirus are very effective, and 2 antivirals can reduce mortality from 50% to 35%. However, there are no current vaccines or medications to prevent or treat Bundibugyo ebolavirus, for which supportive care is the main approach.