Articles tagged with Covid 19 Vaccines
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 York University-led study used machine-learning models to analyze 64 immune biomarkers in people with and without HIV who received COVID-19 vaccines. The researchers found clear vaccine-initiated immune response biomarkers between the two groups, but also identified outliers that provide insights into the complex nature of the immune...
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 multinational study found that COVID-19 vaccination during pregnancy significantly reduces the risk of preeclampsia. The study suggests that maternal vaccination may influence pathways involved in preeclampsia development, potentially offering protection even in the absence of COVID-19 infection.
A new study of over 3 million adults found that booster vaccines reduced the risk of COVID-19-related hospitalization and death. The effectiveness was similar for Moderna and Pfizer-BioNTech booster vaccines, but protection declined over time.
A new commentary raises concerns about editorial bias in scientific publishing, particularly in relation to COVID-19 vaccine safety and efficacy. The authors highlight the rejection of a case report and literature review that raised potential links between mRNA vaccines and rare blood cancers.
A case report investigates a woman's development of acute lymphoblastic leukemia and lymphoblastic lymphoma after receiving her second dose of the Pfizer-BioNTech COVID-19 mRNA vaccine, highlighting potential genetic and molecular mechanisms involved in disease pathogenesis.
A survey by the Annenberg Public Policy Center found that a strong majority of Americans view the MMR vaccine as safe relative to other vaccines. However, the number of people holding this view is below the threshold required for community immunity, which is worrisome.
A study from Linköping University in Sweden found no association between COVID-19 vaccination and decreased childbirth rates. Researchers analyzed data on over 60,000 women and found no statistically significant difference between vaccinated and unvaccinated groups.
The study found that 2024-2025 COVID-19 vaccines offer protection against COVID-19 hospitalization and severe in-hospital outcomes. Monitoring vaccine effectiveness remains crucial to guide vaccine composition and recommendations.
A recent poll found that 42% of people over 50 haven't gotten either flu or COVID-19 vaccines in the past six months. The leading reason for not getting vaccinated was a lack of perceived need, despite clear evidence showing vaccination reduces the risk of serious illness and death in older adults.
A global review of COVID-19 vaccination and infection cases found associations between the two and certain types of cancer. The study analyzed 69 publications and identified potential biological mechanisms, including immune responses and inflammation.
The CDC recommends shared clinical decision-making for some childhood vaccinations, allowing parents to choose or skip certain vaccines. However, a survey found that many Americans are unclear about what this means and who can be included as health care providers in the discussion.
A new survey by the Annenberg Public Policy Center finds a small but significant drop in the proportion of the public that would recommend getting the MMR vaccine, citing concerns over its safety and effectiveness. The survey also shows declines in perceived safety and effectiveness for other vaccines, such as seasonal flu and Covid-19.
A new study reveals that COVID-19 vaccination influences long-term immunity, with those vaccinated first showing stronger antibody responses to Omicron variants. The study found higher levels of IgG and IgA antibodies in vaccinated individuals, but a stronger T-cell response in those infected first.
A UBC-led study found that COVID-19 vaccination significantly reduces hospitalization, intensive care admission, and preterm birth risks for pregnant women. Vaccination is associated with lower risks even as the virus evolved from Delta to Omicron variants.
A new white paper by biostatistician Professor Jeffrey S. Morris analyzes the multicomponent US vaccine safety monitoring system, including VAERS and other components. The study suggests improvements to enhance the system's effectiveness and sustain a robust safety monitoring infrastructure.
Research published in Contemporary Economic Policy reveals that US cities' indoor vaccine mandates did not significantly increase vaccination rates or reduce COVID-19-related outcomes. The findings challenge assumptions about the effectiveness of local public health interventions.
Researchers discovered a 'sticky' molecule, P-selectin, that can cause blood clots and organ failure during COVID-19. A new mRNA therapy that drives P-selectin expression provides broad protection against coronavirus infection.
A new study found that COVID-19 vaccination is associated with a significant reduction in infections and allergic complications among children with atopic dermatitis. The researchers analyzed data from over 5,700 vaccinated and unvaccinated pediatric patients and found lower rates of multiple infections and allergic conditions.
A new study analyzing linked electronic health records found that COVID-19 infections led to a higher and longer-lasting risk of rare heart complications, including myocarditis and thrombocytopenia, compared to vaccination. The research team estimated an additional 2.24 cases of myocarditis per 100,000 children after COVID-19 infection.
Researchers found RSV to be of comparable severity to influenza and COVID-19, with higher death rates and intensive care admissions. Long-term cardiovascular and neurological complications were also observed up to 300 days post-hospitalisation.
The 2024-2025 COVID-19 vaccines demonstrated effective protection against severe disease and similar effectiveness against different subvariants. However, their effectiveness declined over time.
Patients with advanced lung and skin cancer who received a COVID-19 mRNA vaccine within 100 days of starting immunotherapy drugs lived significantly longer. The vaccine was associated with a near doubling of median survival, from 20.6 months to 37.3 months in lung cancer patients.
A recent study found that patients with advanced lung and skin cancer who received a COVID-19 mRNA vaccine within 100 days of starting immunotherapy drugs lived significantly longer than those who did not get the vaccine. The observation marks a significant step toward a long-awaited universal cancer vaccine to boost tumor-fighting eff...
A cohort study of mRNA COVID-19 vaccine exposure in the first trimester found no association with major congenital malformations. The study supports the safety of mRNA COVID-19 vaccines during early pregnancy.
A new pediatric study found that young people infected with COVID twice are twice as likely to develop long COVID, with increased risks for heart disease, damaged kidneys, cognitive issues, and more. The study analyzed data from over 407,000 patients across 40 pediatric hospitals.
A recent survey found that only 38% of US adults recommend taking a Covid-19 vaccine during pregnancy, while only 42% believe it is safe. Women aged 18-49 are even less likely to support vaccination, with 36% and 28% respectively, suggesting a decline in vaccination rates among childbearing women.
A Japanese study has identified four distinct patterns of immune response after COVID-19 vaccines, with a 'rapid-decliner' group experiencing faster decline in antibody levels. Monitoring changes in antibody levels may help identify individuals at greater risk of infection and inform more effective vaccination strategies.
Patients with Long COVID are using digital tools and online communities to track symptoms, identify patterns, and develop care plans. Despite medical dismissiveness, self-tracking data helps patients advocate for diagnostic tests and treatment.
Research found Covid infection may accelerate blood vessel aging around five years, especially in women, leading to a higher risk of cardiovascular disease. The study included 2,390 participants from 16 countries and found stiffer arteries in all three groups of patients who had been infected with Covid.
A new study by Michigan Medicine University of Michigan researchers concludes that broad COVID-19 vaccination in adults saves the US more money than it spends, with significant economic benefits for those over 65 and middle-aged adults. The model focuses on preventing deaths, hospitalizations, and lost productivity.
A synthetic glycosystem mimics natural sugars on human cells, binding to virus's spike protein and preventing infection. The molecule was found to be effective at low doses and worked against multiple SARS-CoV-2 strains.
A modeling study finds that COVID-19 vaccination is more cost-effective for individuals aged 65 and above, with favorable results across different parameter input scenarios. The study's findings support the Advisory Committee on Immunization Practices' decision to recommend vaccination with the 2023-2024 mRNA vaccines.
Researchers discovered that subtle differences in molecular structure can significantly affect mRNA-based drug performance. The study found that optimizing stereoisomers of ionizable lipids like ALC-315 could lead to safer vaccines, as the (S,S)-form delivers mRNA efficiently with reduced toxicity.
A survey of over 1,600 US adults found that most know the negative impacts of smoking and drinking during pregnancy, but uncertainty exists around vaccines and weight gain recommendations. The majority are unsure about recommended vaccines for pregnant individuals, with a notable drop in knowledge since last year.
A preference for domestic vaccines was observed in various countries during the pandemic, including Brazil, Mexico, India, Iran, and the US. Researchers identified a clear pattern of people choosing vaccines from their own country or those from Western nations like Germany, the UK, and the US.
A nationwide cohort study of 1 million adults found no increased risk of 29 adverse events after vaccination with the updated COVID-19 mRNA vaccine containing the SARS-CoV-2 Omicron JN.1 lineage. The study provides reassuring safety data on the new vaccine, which has been widely adopted in response to the Omicron variant
A comparative effectiveness study estimates that COVID-19 vaccinations averted 2.5 million deaths during 2020-2024, with the majority of benefits secured for older adults within this age group.
Researchers at the University of Pennsylvania designed a new recipe for mRNA vaccines by adding phenol groups, which reduce inflammation and improve vaccine effectiveness. The modified lipids improved vaccine performance in various diseases, including COVID-19, cancer, and genetic diseases, with enhanced efficacy and reduced side effects.
This study found that Black and Hispanic children were disproportionately hospitalized for COVID-19 and experienced severe disease compared to white and Asian or Pacific Islander children. Children with underlying medical conditions from these groups also had a higher proportion of hospitalizations.
A new analysis has found a higher risk of arterial and venous thrombosis after COVID-19 infection compared to vaccination. The study also identified an increased risk of thrombosis following the first dose of the AZD1222 vaccine, but not with subsequent doses.
The study found that 2023-2024 COVID-19 vaccines provide additional protection against medically attended COVID-19 and critical illness. These results highlight the significance of receiving recommended COVID-19 vaccinations for adults 18 years or older, contributing to improved public health outcomes.
The American Medical Association (AMA) emphasizes the importance of COVID-19 vaccination during pregnancy, citing benefits and risks. Physicians should counsel patients on vaccine safety, considering individual factors and potential risks.
Scientists have modified mRNA vaccines to include the cytokine IL-12, enhancing T cell responses and improving protection against diseases such as SARS-CoV-2, influenza, melanoma, and listeria infection. The study's findings suggest a promising approach to enhance immune stimulation against cancer and other pathogens.
A new mRNA vaccine has shown to be more effective and less costly to develop, inducing a robust immune response against SARS-CoV-2 variants. The vaccine's trans-amplifying platform allows for reduced production costs and potential broad protection.
A study by researchers at the University of Arizona Health Sciences found that vaccinated people generated an overall protective immune response to Delta and Omicron strains, with slightly fewer antibodies for the mutated parts of the virus. The research suggests that immune changes due to antigenic imprinting may not be a significant ...
A national study in Sweden reveals that COVID-19 vaccination levels among older people have become increasingly uneven, with regional and socio-economic differences emerging. The study found lower vaccination rates among certain groups, including those born outside Sweden, men, and individuals with low income and education.
The study found that mRNA-1083 induced higher immune responses than standard care influenza and COVID-19 vaccines, with an acceptable tolerability and safety profile. The vaccine met noninferiority criteria for all 4 influenza strains and SARS-CoV-2 across various age groups.
A groundbreaking study from the University of Virginia Health System reveals distinct immune patterns in patients with persistent breathing issues after COVID-19. The research identifies specific T cell changes linked to lung damage and fibrosis, paving the way for personalized treatments.
A cohort study found that vaccination against influenza alone or with COVID-19 was associated with a small but temporary change in menstrual cycle length. This finding may help clinicians confirm the utility of vaccination for patients concerned about menstrual side effects.
The BNT162b2 vaccine not only targets the COVID-19 virus but also helps reduce and control innate inflammation to other bacterial and fungal pathogens. By reprogramming innate immune cells, the vaccine reduces pro-inflammatory mediators, providing potential benefits beyond its primary target.
A new study from Murdoch University confirms that COVID-19 vaccinations do not cause significant metabolic changes. The research monitored 167 metabolic markers in 33 participants over 480 days post-vaccination, showing no significant impact on key health indicators.
Researchers found a significant difference in parental support for adolescent consent when the question was framed using "Mature Minor Doctrine" versus describing specific scenarios. The study suggests that clear and detailed information can greatly impact parents' opinions on these issues.
New research found that COVID vaccines significantly reduced the risk of long COVID in children and adolescents. Vaccination was about 95% effective in preventing long COVID in some cohorts, primarily due to its ability to prevent initial infection.
A new study reveals that the US national vaccine strategy saved more money than it spent on testing, buying and delivering COVID-19 vaccines after just one year. The analysis found that the vaccines reduced serious illness and deaths, resulting in significant cost savings.
Researchers at HKU and CVVT create a nasal spray vaccine offering single-dose protection against H5N1 infection, inducing comprehensive immunity in the upper respiratory tract. The vaccine's high safety profile and ability to curb viral transmission make it a critical reserve for future outbreaks.
A study of 113 healthcare workers found that COVID-19 mRNA vaccination induces long-lasting antibody and memory B-cell responses, even in those previously exposed to the virus. The research team also discovered an association between higher levels of specific antibodies and increased risk of breakthrough infections.
The Vaccine Innovation Center at Korea University's College of Medicine successfully held the 2025 Vaccine Expert Training Program, attended by over 380 experts and researchers from various fields. The program aims to foster domestic vaccine R&D experts and promote the development of commercially available vaccines.
Researchers have discovered a key cellular mechanism regulating mRNA vaccine delivery and stability, proposing a new paradigm for mRNA therapeutics. The study highlights the importance of N1-methylpseudouridine modification in enhancing mRNA vaccine effectiveness.