Articles tagged with Influenza
A cross-sectional study investigates whether the time of day for influenza vaccination affects its effectiveness in preventing subsequent infections. The study found that vaccinations given later in the day may be less effective than those administered at other times.
A German analysis explores how COVID-19 disrupted typical transmission patterns of respiratory diseases, leading to shifts in their seasonal surges. The study found that population-level loss of immunity after the pandemic caused a buildup of susceptible hosts, resulting in earlier peak weeks for these surges.
A new study finds that climate change can impact flu season timing and severity across North, Central, and South America. Weather conditions like temperature and humidity help predict outbreaks, with tropical regions potentially experiencing stronger outbreaks while places with distinct seasons see smaller ones.
Scientists have identified a unique chimeric RNA called UBA1-CDK16 that plays important roles in women's blood cell development and disease severity. The findings suggest the chimeric RNA may serve as a natural brake to protect women from excessive autoimmune activity.
The study found that antigenically drifted viruses caused substantial morbidity and mortality, but vaccines reduced risk of influenza among vaccinated individuals. Recommended antivirals remained effective in treating the virus.
A study of over 3,200 emergency department patients across the US found that nearly all participants were aware of influenza vaccination, but 58.4% had not received a flu vaccine within the past year. Among those who declined vaccination, fear of side effects and lack of information were common concerns.
A new study reveals that climate change impacts influenza seasonality, with reduced humidity enhancing viral viability and transmission. The model predicts that warmer climates will see increased outbreak severity in tropical regions, while temperate areas may experience smaller peak outbreaks.
A new preclinical study reveals that an overactive viral sensor in the immune system can cause severe complications during flu infection in pregnancy. By blocking this sensor, researchers hope to prevent harmful inflammation and protect developing babies.
A University of Osaka-led team developed a wastewater-based epidemiology approach to estimate influenza incidence, predicting community outbreaks about one week earlier than publicly available data. The method also enables separate estimation of influenza A and B trends, supporting more detailed monitoring of seasonal outbreaks.
A new study is exploring the effects of a nasal spray flu vaccine on children's immune systems, aiming to boost future protection and lower vaccine hesitancy rates. The study will provide valuable insights into how children develop immunity to influenza vaccines.
Researchers used high-frequency ultrasound waves to eliminate viruses such as SARS-CoV-2 and H1N1 by causing structural changes that led to inactivation. The technique uses acoustic resonance, which differs from cavitation, a process used for decontamination.
Researchers at La Jolla Institute for Immunology discovered that FluMist can trigger an immune response directly in nasal tissue, training immune cells to recognize and fight influenza virus infection. This response stays in the upper airways and cannot be detected via blood samples.
The study found that low influenza vaccination rates among children are associated with increased healthcare visits, hospitalizations, and ICU admissions. Achieving a 70% immunization rate could prevent up to 2.2 million outpatient visits and 123 pediatric deaths during high-incidence flu seasons.
Researchers found memory cells in nasal tissue can reactivate to fight influenza, reducing viral replication and protection against more severe illness. These immune cells can be used to develop better nasal vaccines.
Researchers developed a new flu vaccine approach targeting specific but distinct regions of the influenza virus protein. This method broadened the immune response, leading to broader protection against various strains. The study's findings have implications for fighting other fast-changing viruses like COVID-19 and RSV.
Scientists mapped the spread of a novel flu strain, D1.1 H5N1, through wild bird populations across North America, revealing its emergence and geographic penetration. The study shows that current human vaccine stockpiles will likely work well against both avian and human infections.
A new study found that influenza was detected in 11% of winter deaths, but only 17% had a confirmed diagnosis before death. The study highlights the gap between detection and official mortality records, suggesting influenza may play a larger role in winter mortality than routine surveillance captures.
Researchers found that influenza vaccination reduced the risk of heart attack and stroke by half for those who got infected, even if they didn't get vaccinated beforehand. The study's findings suggest prioritizing influenza vaccination among high-risk populations could have significant public health impact.
A study reveals dermcidin, a human body natural molecule, exhibits antiviral activity against the influenza virus. Higher baseline levels of dermcidin in individuals who don't develop flu-like symptoms may be associated with lower susceptibility to infection.
Robert Webster, Ph.D., a leading expert in influenza research, has been elected as an AAAS Fellow for his contributions to understanding the reservoir and spread of avian influenza. His work has had a direct impact in protecting immunocompromised children at St. Jude and safeguarding children worldwide from pandemic threats.
Researchers discovered a new layer of defense in the lungs, where specialized immune cells coordinate a local response to viral infections. The study found that these cells produce a protein called HIF-1α, which activates neighboring immune cells to mount a coordinated defense.
A recent study by the University of California, Davis, highlights the devastating impact of H5N1 on pinniped populations worldwide. The virus has infected over 400 million poultry and tens of thousands of seals and sea lions, with significant consequences for conservation efforts.
A Weill Cornell Medicine study found that prior exposure to one flu strain can weaken children's ability to mount an effective antibody response against a different strain, a phenomenon known as immune imprinting. This can lead to reduced effectiveness of future vaccines and increased risk of severe illness.
Severe COVID-19 and influenza infections can prime the lungs for cancer development, according to new research. Vaccination, however, largely prevents these changes, suggesting a reduced risk of lung cancer.
A review of 900 scientific articles identified several biological markers associated with cognitive decline in viral infections, including activated monocytes and pro-inflammatory cytokines. Conversely, certain markers like anti-inflammatory cytokines are linked to better preservation of cognitive abilities.
A recent study by University of Georgia researchers found that over 4 out of 5 dead black vultures tested positive for H5N1 bird flu. The actual toll is likely exponentially higher, posing a significant threat to the ecosystem. Sustained transmission and potential for increased virulence are concerning, especially for endangered species.
A study found that COVID-19 infection significantly increases the risk of acute kidney injury, chronic kidney disease, and kidney failure in US adults. The research used machine learning models to analyze data from over three million patients, revealing a 2.3-times higher risk of acute kidney injury compared to influenza.
A new Tulane University study reveals that SARS-CoV-2 infection causes persistent brain inflammation and small blood vessel injury, even after the virus is no longer detectable. This finding helps explain why long COVID often includes neurological symptoms such as brain fog and fatigue.
A study of over 50,000 pregnant women in Norway found low vaccination rates against COVID-19 and influenza, with only 29.9% and 12.1% vaccinated respectively. The study highlights the need for targeted strategies to improve vaccination uptake among expectant mothers.
A new study by Dr. Alex Gileles-Hillel and colleagues found that children with sleep apnea are twice as likely to contract the flu or COVID-19. The researchers suggest prioritizing annual vaccinations for these children to prevent severe respiratory complications.
The study found that a novel subset of white blood cells becomes infected in the lung and produces type 1 interferon, which triggers cardiac damage. A modified mRNA treatment was shown to mitigate cardiac damage while preserving the immune system's protective response. The research offers great promise for developing new therapies to p...
The high pathogenicity avian influenza virus H5N1 has caused the death of over 50 skuas in Antarctica, marking the first documented case of wildlife mortality due to the virus on the continent. The study found that the virus was primarily affecting the South Shetland Islands and Antarctic Peninsula.
A new experimental intranasal spray, INNA-051, will be tested in a randomized Phase 2 trial to determine its safety and effectiveness in reducing illness from respiratory viruses. The study aims to enroll 1,100 healthy adults at increased risk of upper respiratory virus infections.
The program brought together 31 health professionals from nine Asian and African countries for advanced training in epidemiology, clinical treatment, and research & diagnosis. Participants also conducted on-site field visits to leading institutions, strengthening their response capacities.
Researchers developed an intranasal vaccine that elicited strong immune responses and prevented infections in exposed animals, providing protection against upper respiratory infection and severe disease. The nasal vaccine was effective regardless of prior flu exposure, making it a promising tool in the fight against H5N1 bird flu.
The new platform developed by UVA Health scientists can produce vaccines much faster, cheaper, and more easily than traditional approaches. The platform's proof-of-concept demonstrates its ability to produce highly immunogenic vaccines that can be manufactured at extremely low cost.
A study found that maternal vaccinations against influenza and pertussis are associated with reduced hospitalization or emergency department visits in infants under 6 months. Implementing maternal vaccination campaigns can enhance infant health outcomes, addressing low vaccination coverage.
A new study found that airborne transmission of the flu is a major factor in its spread, but ventilation and air movement can reduce transmission. The study used a controlled environment to investigate how the flu spreads through the air between infected and uninfected people.
Public Health Alerts provide concise, data-driven information on disease outbreaks and urgent health events. The new series, launched by NEJM Evidence and CIDRAP, offers expert-reviewed reports to support public health evidence-based care.
The emergence of A(H3N2) subclade K viruses in Australia and New Zealand extended their influenza seasons, with Australia experiencing a record-breaking season. The viruses were likely imported from the US and accounted for half of Australian viruses and over two-thirds of New Zealand viruses.
A study by Iowa State University researchers reveals that avian influenza can infect livestock and humans through their mammary glands, which have high levels of sialic acids. This increases the risk of transmission and potentially more dangerous adaptations emerging.
The new guideline recommends full-time infection prevention staff, comprehensive training, and support for all staff, as well as partnerships with hospitals and public health agencies. This guidance aims to reduce the risk of infections in nursing homes, saving lives and money.
A cohort study of adults aged 45 or older with RSV infection found a significant excess risk of cardiovascular events over 1 year, comparable in magnitude to influenza infection. This highlights the importance of RSV as a potential risk factor for cardiovascular morbidity and underscores the need for vaccination to mitigate this burden.
Researchers studying long COVID are drawing parallels with historical chronic illnesses, highlighting the need for effective interventions. By analyzing past epidemics and post-acute infection syndromes, scientists hope to gain insight into the mechanisms of these conditions.
Researchers at Children's Hospital of Philadelphia found that circadian rhythms play a crucial role in boosting infection recovery in critically ill patients with respiratory viral infections. Maintaining a rhythmic meal schedule can mitigate the effects of disrupted light cycles and improve outcomes.
Research suggests that iron deficiency can negatively affect immune cells' response to viruses, leaving lasting effects on lung immune cells. Iron deficiency is linked to conditions like asthma and affects women and young children disproportionately.
Researchers found that avian influenza viruses can thrive in the lower respiratory tract and withstand high temperatures, while human flu viruses replicate at higher temperatures. Fever may not be enough to protect against avian flu viruses, which can cause severe illness.
The FluWarning system uses genetic code analysis to detect subtle changes in flu viruses that may indicate cross-species transmission. It has been successfully applied to H5N1 bird flu and detected clusters of viral activity in the US, issuing alerts before official reports were published.
The American College of Physicians (ACP) has issued new influenza vaccine practice points that recommend standard-dose trivalent or quadrivalent vaccines for healthy adults aged 18-64, and high-dose trivalent or quadrivalent vaccines for those 65 years old. The guidelines aim to prevent seasonal epidemics caused by highly infectious fl...
Researchers found that immune cells in the gut follow an atypical pathway to produce antibodies providing long-term protection against viruses. The study could help guide the development of better vaccines for respiratory viruses like influenza and SARS-CoV-2.
Researchers compared four flu vaccines and found varying cellular immune responses across different age groups. The Fluzone High-Dose vaccine outperformed others in older adults, while Flucelvax excelled in younger adults.
Researchers have developed particles that can deliver an effective immune response at a much lower dose than traditional mRNA vaccines. The new particles, called AMG1541, use cyclic structures and ester groups to enhance mRNA delivery and improve biodegradability. This could potentially reduce vaccine costs and side effects.
A new human lung alveolus chip model enables investigation of viral replication, inflammatory responses, and genetic off-target effects of a novel pan-influenza CRISPR therapy. The study achieved significant reductions in virus load and host inflammatory response after a single administration.
A new study found that COVID-19 work absences have become a year-round phenomenon in the US labor market, similar to pre-pandemic influenza season conditions. Nationally representative data can help monitor public health crises and inform policy decisions.
Researchers argue that AI can strengthen pandemic preparedness by detecting emerging diseases earlier. By combining data from humans, animals, and the environment, AI can reveal patterns and provide insights into potential pathogens.
A new molecular sensor can detect influenza virus in the presence of a thymol flavor, which is released when the virus interacts with human saliva. Researchers plan to integrate this technology into chewing gum or lozenges for at-home screenings and pre-symptomatic transmission prevention.
Dr. Langlois and his team will support large-scale scientific research, protect vulnerable communities, and strengthen Canada's ability to face future health emergencies. The High-Throughput Facility infrastructure will rapidly detect and track new infectious disease threats while protecting people and communities.
Researchers develop a framework for biologging-based surveillance to detect disease outbreaks in wildlife, providing insights into the spread of zoonotic diseases like avian flu and COVID-19. The approach aims to revolutionize public health interventions by enabling early detection and proactive prevention.
Researchers developed an unusual therapy using a cocktail of antibodies that protected mice from nearly every strain of influenza, including avian and swine variants. The therapy did not allow viral escape, even after repeated exposure in animals.
Researchers found that apolipoprotein D reduces the protective antiviral type I interferon response in older individuals, leading to more severe disease outcomes. This discovery offers a potential target for therapeutic intervention to protect against severe influenza virus infection in the elderly.