Articles tagged with Swine Flu
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Researchers develop a gene therapy that gives mice complete protection against lethal strains of H5N1 and H1N1 flu virus, including the infamous 1918 flu. The treatment involves expressing a broadly neutralizing antibody in nasal epithelial cells, providing substantial reductions in flu replication and virus load.
A new study reveals that the 2009 H1N1 swine flu pandemic was deadliest for people under the age of 65, while those 65 and over had greater immunity due to previous exposure to similar viruses. Researchers suggest targeting pandemic vaccination campaigns to adults under 65 in comparable scenarios.
A novel vaccine concept using HA-ferritin nanoparticles elicited a potent immune response and broad protection against H1N1 virus strains. The experimental vaccine was also active against a wider range of strains than the licensed seasonal influenza vaccine.
A*STAR and Cytos have initiated a Phase 1 clinical trial for Singapore's first H1N1 influenza vaccine candidate based on Cytos' proprietary bacteriophage Qbeta virus-like particle (VLP) technology. The vaccine aims to provide an effective means of combating influenza epidemics and pandemics in Singapore and the ASEAN region.
Scientists detected H1N1 virus in free-ranging northern elephant seals off California coast, indicating potential for transmission to humans. The discovery highlights the importance of protecting workers handling marine mammals and preventing disease transmission between species.
Researchers have developed a set of molecular assays that can diagnose and subtype influenza viruses rapidly, without the need for additional equipment. The assays can detect major resistance mutations to oseltamivir and provide information on viral load and antiviral susceptibility within one working day.
A study by Penn State University researchers found that exposure to negative sentiment on Twitter is contagious, while positive sentiments are not. Microbloggers with reciprocal relationships tend to be influenced differently depending on the vaccine sentiments of their connections, with negative sentiments being more socially contagious.
A recent study found that disease surveillance and notification systems performed effectively during the 2009 H1N1 influenza pandemic. The systems were able to quickly identify the novel viral subtype and trigger national and global pandemic plans.
Researchers used surveillance data to identify coastal areas in China and the Nile Delta in Egypt as high-risk zones for future flu outbreaks. These regions could be targeted for increased monitoring and vaccination efforts to prevent a pandemic.
A meta-analysis found a small excess risk of Guillain-Barré syndrome associated with H1N1 flu vaccination. However, the benefits of vaccination significantly outweighed the risks. The study analyzed data from 23 million people vaccinated in the USA during the 2009 pandemic.
A new study published in the American Journal of Pathology found that interleukin-22 (IL-22) plays a crucial role in normal lung repair following influenza infection. Even after the initial episode of influenza has passed, IL-22 helps to promote recovery of normal lung function and architecture.
A new method better assesses pandemic risks by estimating transmissibility of emerging zoonotic viruses, such as the H3N2v-M virus, using routine surveillance data. This approach is simple and robust, but may not be suitable for non-subcritical outbreaks.
Scientists have discovered a new class of molecular compounds capable of killing the influenza virus. The compounds work by clogging up an enzyme that helps the virus spread, and are more effective because they are water-soluble. This breakthrough could buy scientists time to develop new vaccines for emerging strains of influenza.
Researchers at the University of Louisville have identified H1N1 strain variations that hijack the body's immune system. The study found that these variants differ in their ability to fight off infection, with some more severe than others.
A study published in the New England Journal of Medicine found that H1N1 flu shots do not increase the risk of pregnancy loss. In fact, vaccination reduces the risk of fetal loss by up to twofold compared to influenza infection alone.
Researchers found that pigs in southern China were infected with three strains of avian influenza viruses, including H3, H4, H5, and H6 subtypes. The study suggests that pigs can serve as mixing vessels for genetic reassortment that could lead to pandemics.
Over the past two decades, heightened awareness of emerging infectious diseases has improved diagnosis, treatment, and prevention through advances such as rapid genome sequencing. The complex interactions between microbes and human hosts are being better understood, leading to new insights into disease development and countermeasures.
Researchers developed a new model that incorporates detailed household transmission data to better predict flu outbreaks. The study found that infection rates were higher than previously thought, revealing the importance of including untested individuals in outbreak analysis.
Researchers at the University of Warwick have created a model to predict the impact of future pandemics in real-time. By analyzing statistical data, they found that infection rates were higher than previously thought and transmission probabilities decreased with increasing household size.
A recent survey of over 5000 people in five countries found that Britons were the least likely to adopt protective behaviors against the flu. In contrast, Mexicans made significant efforts to cover their mouths with tissues when coughing and sneezing during the pandemic.
US schools are not adequately prepared for pandemics due to a lack of written plans and coordination with local agencies. Researchers at SLU's Institute for Biosecurity surveyed over 2000 nurses and found that only 48% of schools address pandemic preparedness, emphasizing the need for annual reviews and nurse involvement.
A broadly protective, fully human monoclonal antibody targeting a conserved region on the influenza hemagglutinin protein provides 100% protection against all H1N1 and H3N2 strains in mouse models. This antibody approach may be a turning point for seasonal and pandemic influenza prevention and treatment.
A new study warns that online self-diagnosis can lead to overestimation of disease likelihood due to symptom-focused searches. This bias may result in consumers taking unnecessary medical actions, causing harm to themselves and society.
A recent study found a small but significant risk of Guillain-Barre syndrome following H1N1 vaccination, primarily in individuals over 50 years old. The risk was estimated to be approximately 2 cases per 1 million doses, with most cases occurring within 4 weeks of vaccination.
A Wayne State University researcher is conducting a study to understand the link between obesity and severe flu outcomes. The study aims to identify specific factors that contribute to poor health outcomes in obese patients with influenza, with the goal of developing targeted treatment strategies.
Researchers estimate that pandemic flu deaths were 15 times higher than reported, with 80% of cases occurring in people under 65 years old. The study suggests a significant human toll and highlights the need for improved influenza disease burden modelling globally.
A successful swine flu vaccination program in Scotland showed 77% protection against the H1N1 virus, while also reducing hospital admissions by 20% due to related disorders. The program's effectiveness was demonstrated through detailed data analysis, which took into account multiple conditions such as pneumonia and COPD.
Brown University engineers create a biochip called SMART that can detect influenza by identifying specific RNA sequences and separating them from other biological debris. The device is small, low-cost, and fast, making it potentially useful in first-aid kits.
A new study published in Biochemistry found that the swine flu virus H1N1-2009 develops resistance to drugs Relenza and Tamiflu by mutating its NA enzyme, specifically the '150-loop' region. This mutation reduces drug effectiveness by 21 times for Relenza and 12,374 times for Tamiflu.
A large study found that mothers who received the H1N1 flu vaccine during pregnancy were 34% less likely to have a stillbirth, 28% less likely to deliver before 32 weeks, and 19% less likely to give birth to a child with low birth weight. The study also showed no adverse outcomes for vaccinated mothers and their babies.
Researchers have made a significant discovery that the pandemic 2009 H1N1 vaccine can produce antibodies against not only the H1N1 virus but also other influenza virus strains including H5N1 and H3N2. This breakthrough brings the team closer to developing a pan-influenza vaccine that can reliably induce broadly cross-reactive antibodies.
Researchers found that the 2009 H1N1 pandemic vaccine triggers antibodies protecting against many influenza viruses, including deadly avian H5N1 strain. This discovery could lead to universal flu vaccines eliminating seasonal vaccination needs.
Researcher Timpka investigates how different age groups are affected by the flu, with seasonal epidemics striking hardest in children and elderly. The study also explores theories on why this is the case, including the impact of early-life infections on immunity.
Researchers at the University of British Columbia have identified a number of tiny but powerful genetic regulators that are hijacked by avian and swine flu viruses during human infection. The discovery could reveal new targets for broad-spectrum antivirals to combat current and future strains of influenza A viruses.
Researchers at Rockefeller University discovered that the influenza A virus's NS1 protein hijacks key regulators of antiviral gene function by mimicking a core component of gene regulating machinery. This finding suggests a possible target for new antiviral and anti-inflammatory drugs.
A McMaster University study finds that closing schools can significantly reduce the spread of pH1N1, with a 50% reduction in transmission observed. The research used high-quality data from Alberta to demonstrate the effectiveness of school closures as a control measure during pandemic outbreaks.
A University of Michigan report found that young adults in Generation X were moderately concerned about the flu and followed the issue closely. Despite a low vaccination rate, they responded accordingly by being well-informed and taking actions to protect themselves and their families.
The Hajj pilgrimage in Saudi Arabia has provided valuable lessons on managing mass gatherings and preventing global disease outbreaks. The country's experience in enhancing screening and surveillance measures has been crucial in tackling complex public health challenges.
Mass gatherings provide a unique opportunity to promote vaccination and reduce the spread of infectious diseases, as seen in outbreaks at World Youth Day and music festivals. Coordinated risk assessment and management are key to preventing disease transmission during and after events.
The partnership aims to strengthen national public health institutes globally, leveraging IANPHI's peer-assistance model and the CDC's expertise. The project will focus on four low-resource countries, with the goal of creating sustainable capacity building efforts.
A study of 107 pregnant women found that the H1N1 flu vaccine boosted their immune system and protected their newborns via transplacental transfer of antibodies. The results show that the influenza vaccine is safe during pregnancy and recommended for pregnant women to protect themselves and their babies.
Recent studies have shed light on the rising trend of total knee replacements, with researchers finding that increasing knee pain may be a contributing factor. Additionally, a single dose of influenza vaccine administered during pregnancy has been shown to protect both mothers and their newborns from swine flu. Meanwhile, a review of s...
A study by the University of Maryland found that social determinants like workplace policies and household size contributed to a higher risk of exposure to H1N1 among Hispanics during the 2009 pandemic. The researchers suggest creating federal sick leave mandates to address this health disparity.
Flu strains migrate globally, evolving along the way, contradicting the theory that they come from tropical areas. Influenza viruses in tropical regions show relatively low levels of genetic diversity and no seasonal fluctuations.
Researchers used new technologies to collect near-real-time data on vaccination side effects in Scotland, revealing no significant safety issues with the 2009-10 swine flu vaccine. The study adds to evidence supporting the safety of vaccination campaigns and could inform future studies using web-based technology.
A nationwide investigation found that simultaneous infection with methicillin-resistant Staphylococcus aureus (MRSA) increased the risk for flu-related mortality 8-fold among previously healthy children. The study, led by Children's Hospital Boston, tracked 838 children admitted to pediatric ICUs and found that co-infection with MRSA w...
Researchers have confirmed a rare incidence of individuals becoming infected with both seasonal and pandemic strains of the flu at the same time. Experts say this highlights the ongoing risk of distinct flu viruses combining in human hosts, particularly in Southeast Asia where avian influenza and pandemic H1N1 are prevalent.
Antibodies have been found to trick certain bacteria into killing each other, providing a new mechanism for bacterial clearance. Additionally, researchers suggest that humoral immunity may play a role in eliminating old seasonal influenza virus strains by inducing an anti-stalk antibody response.
Researchers have identified adult stem cells that can regenerate lung tissue, providing hope for new treatments of acute and chronic airway diseases. The findings suggest that the lungs have a remarkable ability to regenerate after infection, with stem cells proliferating rapidly and assembling into alveolar-like structures.
A Penn State University study analyzed tweets about the H1N1 vaccine to track vaccination rates and attitudes. The research found patterns that correlate vaccination rates with geographic location and sentiment trends over time. This analysis could be used strategically to develop targeted public health initiatives.
A study published in JAMA found that patients with severe 2009 H1N1 influenza who developed respiratory failure and received extracorporeal membrane oxygenation (ECMO) treatment had a lower rate of in-hospital death compared to those who did not receive ECMO. The study used matching techniques to analyze data from 1,756 patients.
A study of 1,520 patients found that those with asthma admitted to hospital with H1N1 had less severe outcomes, including lower mortality rates and fewer intensive care needs. This was attributed to prompt admission, appropriate treatment, and regular inhaled steroid use.
A study by UCLA scientists has found the first evidence of the H1N1 virus in animals in Africa, with 89% of pigs studied showing exposure to the virus. The discovery highlights the rapid spread of diseases globally and the importance of understanding viral transmission between humans, wild animals, and domestic animals.
Researchers at Northwestern University have developed a new model for predicting disease spread by considering the base location of individuals. This approach creates significant differences in disease predictions compared to traditional models.
A new Stanford study found a significant correlation between narcolepsy onset and seasonal H1N1 infections, suggesting that getting vaccinated may provide protection. The study of over 900 patients in China revealed a five-to-seven month delay between flu/cold outbreaks and narcolepsy cases, with the disease most frequent in April.
Researchers at Tel Aviv University have developed a unique computational method to analyze the H1N1 virus, identifying key mutation strategies that led to the 2009 pandemic. This method reveals crucial differences between the pandemic strain and common seasonal H1N1 strains, shedding light on potential vaccine development.
The National Institutes of Health has renewed funding for a research project at Virginia Tech to develop computational models to assist policymakers and researchers in making better-informed decisions about emerging infectious diseases. The project aims to refine existing models to provide software tools that can help public health off...
Researchers found that pediatric liver-transplant patients required a second vaccination to defend against the pandemic virus, as a single-dose H1N1 vaccine did not provide adequate protection. A study published in Liver Transplantation revealed that increasing time since transplant correlated with successful immune response.
Researchers developed a breath test to measure immune response to H1N1 flu virus. The test detected increased levels of nitric oxide and isoprene in exhaled breath, indicating an immune response triggered on day three after vaccination. This could help prioritize vaccinations for those who need them most.
A new study by University of Maryland researchers found that combining two flu strains, H1N1 and H9N2, can create a new, potentially deadly virus. The study suggests that this 'viral sexual reproduction' process could lead to the emergence of a new influenza pandemic.