Articles tagged with Flu Vaccines
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A new RAND Corporation study emphasizes the importance of office-based medical practice in promoting adult vaccinations. Despite the high efficacy of vaccines, adult vaccination rates remain low, with only 70% of those at highest risk exceeding recommended inoculation rates for influenza. To address this issue, researchers propose stra...
University of Pittsburgh researchers propose a new model to design better flu shots, balancing composition and timing decisions. The model considers multiple strains, production methods, and policy questions, aiming to increase the societal benefit of the flu shot.
A California hospital raised its employee influenza vaccination rate above 90 percent by implementing a mandatory vaccination policy. The study, published in Infection Control and Hospital Epidemiology, found that voluntary programs alone were insufficient to achieve meaningful increases in flu vaccination rates.
Scientists at the International Vaccine Institute have discovered a sublingual vaccine that protects mice against various flu viruses, including H5 and H1. The vaccine induces immunity in the lungs and offers an alternative strategy to prevent influenza infection.
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.
A Phase I/II study demonstrated the experimental norovirus VLP vaccine significantly reduces the incidence of gastroenteritis due to norovirus, with a 47% reduction compared to placebo. The vaccine also increased antibody titers and functional responses in subjects, indicating increased protection against illness.
Researchers at Arizona State University have developed a plant-derived vaccine for Ebola that provided strong immunological protection in a mouse model. The vaccine uses a DNA blueprint to convert tobacco plants into living pharmaceutical factories, producing a vaccine molecule that can be easily purified and administered.
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.
Researchers found that influenza viruses can circulate globally, with multiple urban centers acting as sources of seasonal epidemics. The study used RNA sequences from 2003-2006 and showed high rates of viral migration among cities, challenging the long-held theory that tropical areas are the only source of seasonal flu.
A meta-analysis found that licensed influenza vaccines in the USA have critical gaps in evidence for effectiveness, especially in high-risk individuals and those over 65. The study suggests a need for more highly effective and cross-protective vaccines to combat seasonal influenza and potential pandemics.
A new study by University of North Carolina Health Care reveals that obesity impairs the immune system's ability to fight flu viruses. The research found that obese individuals experience a decline in antibody levels and defective CD8+ T cells after receiving the annual flu shot, making them more susceptible to flu illness.
A study by Brown University found that nursing home flu shot vaccination rates are lower for black patients compared to white patients. Despite efforts to improve vaccination rates over time, the disparity persists within individual facilities, with black patients refusing shots at a higher rate than whites.
A DNA vaccine regimen primed with H5N1 influenza followed by a booster dose of traditional influenza vaccine showed improved immune response and protected levels of antibodies, targeting the virus's stem region. This strategy could help prepare for future pandemics by reducing traditional vaccine manufacturing capacity.
Researchers found that a DNA vaccine expressing a key H5N1 protein enhanced the immune response to an H5N1 avian influenza vaccine. The prime-boost regimen produced high levels of protective antibodies and broadly neutralizing antibodies against the HA stem, a region relatively constant across many strains of influenza viruses.
A study found that vaccinating children aged two to four years against seasonal influenza resulted in a 34% decline in flu-like illnesses. Vaccination of this age group also led to a 11% decline in other nontarget age groups, suggesting reduced transmission at home and in the community.
A recent study found that vaccinating preschoolers against the flu led to a 34% decline in influenza cases among two- to four-year-olds. The study used real-time hospital data to evaluate the relationship between national flu vaccination policies and rates of flu-like illness.
The Saudi Ministry of Health has published its 2011 health conditions for travelers to the Kingdom of Saudi Arabia for the Hajj pilgrimage. The guidelines outline the full requirements for entry into Saudi Arabia and aim to protect pilgrims from communicable diseases. Travelers are urged to read the guidelines thoroughly.
Researchers at the Trudeau Institute have discovered that FluMist elicits protection by inducing a very early non-specific immune response in the lungs, which is protective against both matching and non-matching influenza strains. This response also limits lung inflammation and reduces susceptibility to secondary bacterial infections.
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.
A new study by NIH-funded researchers found that a prime-boost mix of injected or spray flu vaccine provides the broadest immune response in young children. The study also found that nasal spray vaccine stimulates a wide array of immune T cells, which may be important for protection against diverse flu strains.
Researchers have discovered an antibody that can neutralize a broad range of flu strains, potentially reducing the need for annual vaccinations. The antibody, called CH65, mimics key aspects of the influenza virus's entry point and could guide the development of vaccines targeting multiple strains.
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.
Researchers have developed a method to predict whether someone will produce high levels of antibodies against a flu shot, allowing for the rapid development of vaccines and monitoring of suboptimal immune responses in vulnerable populations. The test uses gene activity data to identify predictive signatures with up to 90% accuracy.
Researchers at Scripps Research and Crucell have discovered an antibody that can neutralize a range of human-affecting flu viruses in lab-dish tests and in mice, including H3 and H7 subtypes. The new antibody has the potential to protect people against most influenza viruses, and could lead to a universal flu vaccine.
Patients treated with sunitinib and sorafenib showed an antibody response comparable to healthy participants, indicating the flu vaccine is safe and effective. This finding has broad implications for patient management beyond targeted therapy.
A new study found that infants born to mothers who received the influenza vaccine during pregnancy are 45-48% less likely to be hospitalized with laboratory-confirmed influenza. The researchers analyzed data from seven flu seasons between 2002 and 2009, involving 1,510 babies hospitalized within the first six months of life.
Geisinger Health System achieved a high flu vaccination rate of over 92% among employees through a modified mandatory program. The system required staff to wear masks for non-vaccinated employees, resulting in improved team building and full vaccination rates.
The article highlights the factors influencing vaccine production, access, and uptake, including technologies used to manufacture vaccines, national regulations, and cold chain requirements. The authors emphasize the need for improved surge capacity within the vaccine industry to meet global demand during pandemics.
Research suggests that the swine flu outbreak of winter 2009-2010 was more widespread than previously realized, with almost half of Scottish adults carrying antibodies to the virus. The study found that people from deprived areas were twice as likely to contract the virus.
A combination of two adjuvants induces CD8 killer T cells to join antibodies in response to influenza infection, potentially boosting vaccine effectiveness. The strategy has promise for a universal flu vaccine that wouldn't require annual reformulation.
A study found that infection with influenza likely increases the incidence of invasive pneumococcal disease (IPD). Influenza infection may increase the short-term risk of bacterial invasion in individuals already colonized with Streptococcus pneumoniae, which causes IPD. This suggests that some cases of IPD could be attributable to inf...
A new universal influenza vaccine candidate, VAX102, has safely produced an immune response in humans and could eliminate the need for annual flu vaccine updates. The vaccine targets a protein called M2e, found on the surface of the influenza A virus, which remains relatively unchanged over time.
A study published in PLOS Medicine found an association between maternal influenza vaccination and reduced likelihood of prematurity. Babies born to vaccinated mothers were less likely to be premature compared to unvaccinated mothers, with an adjusted odds ratio of 0.60.
A study found that RA patients had lower seroprotection rates and seroconversion rates compared to healthy individuals after receiving the H1N1 vaccine. This highlights the need for specific immunization strategies for patients with rheumatoid arthritis in future flu pandemics.
Research shows that African Americans with systemic lupus erythematosus (SLE) have a higher antibody response to the influenza vaccine compared to European American patients. Treatment with prednisone and history of hemolytic anemia are linked to low antibody responses in SLE patients.
A national survey of 1,621 parents found that concerns about vaccine side effects and respiratory infections are major factors preventing vaccination for children with asthma. The study suggests that physicians can play a key role in addressing these concerns and promoting vaccination.
Researchers found unhealthy substance use is a barrier to completing recommended preventive services, including mammograms and flu shots. The study suggests targeting individuals with substance use problems for tailored interventions to improve service adherence.
The University Health System increased flu vaccinations rates from 59 percent to 77 percent through interventions including vaccine kits, educational conferences and a dashboard to track vaccination rates. The effort led to the hospital surpassing national average for healthcare worker vaccination rates.
A study found that flu vaccination in transplant patients lowers risk of organ loss and death. Vaccination is safe and effective, contradicting earlier concerns about its impact on transplanted organs.
A study found low vaccine acceptance rates among parents of black and Hispanic children, with only 36% indicating they would immunize against H1N1. Parents' confidence in vaccines and their preventive abilities were key factors influencing vaccination decisions.
Researchers found that pulmonary administration of granulocyte macrophage-colony stimulating factor (GM-CSF) significantly reduces flu symptoms and prevents death in mice infected with lethal doses of influenza virus. The study suggests a novel method to confer marked resistance to influenza by enhancing innate immune mechanisms.
Researchers discovered that DMXAA enhances flu vaccine efficacy by causing the body to produce its own antiviral proteins. The drug may also treat newly emerging flu strains and possibly other viruses, offering a potential lifesaving therapy for millions.
A new study has successfully trialed a synthetic universal flu vaccine in mice, providing 100% protection against the H3N2 strain and 20% against the highly pathogenic bird flu. The vaccine uses peptides that trigger an immune response to a region of the flu virus present in all influenza A and B viruses.
A new cell-culture-derived flu vaccine has shown to be at least as immunogenic and efficacious as traditional egg-derived vaccines. The vaccine was well-tolerated with no treatment-related serious adverse events, and its production allows for more reliable and flexible supply.
A stockpiled vaccine against the 2004 bird flu strain can be combined with a current vaccine to protect against a potential pandemic, researchers say. Giving the old vaccine first primes the body for a second dose of the new vaccine, boosting the immune response.
A European study funded by the ECDC and coordinated by EpiConcept found that one dose of the pandemic flu vaccine provided good protection against H1N1 influenza, particularly in people under 65 and those without chronic conditions. The authors suggest that future studies should focus on the new trivalent vaccine for the 2010-11 season.
Researchers found that people infected with 2009 H1N1 and recovered produced antibodies protective against a variety of flu strains. The study suggests incorporating these defenses into a vaccine could provide broad protection against all influenza strains.
Researchers identified broadly protective antibodies against a variety of flu strains in patients infected with the 2009 H1N1 pandemic strain, suggesting a pan-influenza vaccine may be feasible. The antibodies could guide efforts to design a vaccine providing long-lasting protection against a wide spectrum of flu viruses.
A head-to-head trial found that the adjuvanted split-virus vaccine achieved a more rapid and stronger immune response than the whole-virus vaccine. In young adults, a single dose of the adjuvanted vaccine induced early seroprotection within one week, suggesting potential for reduced dosing frequency.
Researchers found that vaccinating pregnant women against influenza prevents hospitalization in infants by 91.5%. This effective strategy protects young infants without a vaccine, and is cost-effective as it protects two individuals.
A single dose of the 2009 H1N1 influenza vaccine was found to be safe and induced a strong immune response in individuals with asthma. Participants over 60 with severe asthma required a higher dose for adequate protection.
Research from the University of Rochester Medical Center reveals that gaps in seasonal influenza vaccination rates between elderly whites, African-Americans, and Hispanics widen when vaccine supply is delayed or decreased. The study found significant declines in vaccination rates among minority groups during years with shortages.
Researchers at NIAID envision a universal flu vaccine that elicits an unnatural immune response, protecting against multiple flu strains. By targeting a shared region of the flu protein HA, scientists hope to develop a broadly protective vaccine that could replace seasonal vaccines.
Scientists have developed a novel flu vaccine using bacteria, which triggers an immune response without the need for eggs. The study, led by John Treanor, showed that the experimental vaccine worked well in people, with about half of participants responding strongly to just one microgram of the vaccine.
A recent study found that inactivated flu vaccines are effective in preventing influenza in infants under 2 years old. The research suggests that most countries' current vaccination guidelines should be reassessed to prioritize infant protection against the virus.
The article discusses ongoing research to improve influenza vaccines, including the development of novel production technologies and approaches such as recombinant virus proteins and universal flu vaccines. These efforts aim to provide better protection against multiple strains of influenza and novel flu viruses in the future.
The NIH has awarded a five-year grant to develop a painless, self-administered flu vaccine using patches containing tiny microneedles. The technology aims to improve vaccination rates, especially among children and the elderly, by reducing the need for medical personnel.
Researchers used multidimensional scaling to create a graphical plot of amino acid sequence data for all strains of H3N2, predicting the dominant strain with high accuracy. The new method can predict whether a new flu strain will become dominant as little as two weeks after its appearance in GenBank, outperforming current methods.
A new analysis of old data suggests that bacterial infections associated with the 1918 influenza pandemic may be important in modern pandemics. The study confirms the importance of Streptococcus pneumoniae vaccines in preventing pneumonia and death, which could lead to reduced mortality rates in future outbreaks
A study found that states with higher past seasonal influenza vaccination coverage or use of other preventive health services showed higher H1N1 vaccine rates. States with lower adult vaccination coverage had longer disease circulation periods, suggesting households may not need vaccinations if someone already has the flu.