Articles tagged with Vaccination
A study found that COVID-19 vaccination rates are driven more by perceptions of others' intentions than public health messaging. Family and friends have a stronger influence on vaccination decisions, while public health efforts targeting broader groups may be less effective.
A new recombinant VSV-vectored vaccine developed at UTMB provides rapid protection against lethal Lassa fever, a pathogen causing severe symptoms and high mortality rates. The vaccine was found to be effective against different strains of the virus, critical for outbreak scenarios.
A new study suggests that current vaccine boosters intensify protections against serious infection caused by Omicron subvariants. The research found that booster doses bring neutralizing antibodies to appreciable levels against all Omicron subvariants, consistent with other evidence of expanded memory B cells and antibody production.
A new Omicron-specific mRNA vaccine, Omnivax, has been developed by Yale scientists to offer superior immune protection against two viral subvariants. The vaccine increased neutralizing antibody response against BA.1 and BA.2.12.1 Omicron subvariants in pre-immunized mice 19-fold and eight-fold, respectively.
The International Vaccine Institute (IVI) has launched a two-week training course for biologics development and manufacturing, targeting low- and middle-income countries. The program aims to enhance local production of vaccines and biologics in LMICs to address vaccine inequity and global pandemic preparedness.
Researchers analyze delta variant's biophysical characteristics, revealing unique traits that evade neutralizing antibodies and contribute to severe symptoms. The study sheds light on why vaccinated individuals can still contract the virus and why delta variant hospitalizations are higher than other variants.
Provincial health ministries hold COVID-19 vaccination data but have been reluctant to share it with researchers. Establishing partnerships between provinces and the Health Data Research Network would enable timely data transfer and support research into vaccine effectiveness.
A study analyzing over 35,000 COVID-19 vaccine recipients found that 42.1% experienced heavier menstrual flow after vaccination. The analysis also revealed correlations between pre-vaccination reproductive history and hormonal status on the likelihood of experiencing these changes.
A new study by Yale School of Public Health researchers found that COVID-19 vaccine protection against infection and severe illness is short-lived. The study suggests that booster shots are essential for maintaining long-term immunity and preventing breakthrough infections.
A study of 980,000 people found that simultaneous administration of COVID-19 mRNA booster and seasonal influenza vaccines was associated with significant increases in reports of systemic reactions. The study suggests that the combination may lead to more severe adverse events, highlighting the need for further research.
A new study identifies pox virus proteins that directly interfere with the body's innate immune system, allowing it to evade the host's defense mechanisms. The research team has discovered five 'redox' proteins that interact with Reactive Oxygen Species, which play a key role in destroying pathogens identified by the immune system.
A recent study published by The BMJ confirms previous reports that myocarditis is rare but cases are highest among young males shortly after a second dose of mRNA vaccine, especially Moderna. The risk of myocarditis or pericarditis might be lower when the second dose is given more than 30 days after the first dose.
Researchers at the University of Malaga study the global risk of yellow fever transmission to humans, finding high zoonotic potential in southeastern Brazil and western Amazon basin. The team proposes prioritizing vaccination efforts in regions with favorable conditions for virus presence and mosquito vectors.
A novel point-of-care biosensing device has been developed to detect measles virions in human saliva, potentially aiding in viral spread control. The device, smaller than a €1-cent coin or U.S. quarter, utilizes lab-on-a-chip technology and showed high accuracy in experiments.
A study by University of Illinois researchers reveals that a vaccine and virus can infect the same cells in living animals, sharing molecular tools to spread. The findings should inform vaccine design to eliminate potential attributes that help viruses spread.
A modeling study estimates COVID-19 vaccination prevented significant number of infections, hospitalizations and deaths among vaccinated US adults from December 2020 to September 2021. The study found 27 million SARS-CoV-2 infections, 1.6 million hospitalizations, and 235,000 deaths were averted through vaccination.
A new study from the University of Georgia suggests that age and risk perception have a significant impact on COVID-19 vaccine acceptance, surpassing political ideology. Older adults (50+) are more likely to consider themselves at risk for severe illness and are universally vaccinated, particularly above 75 years old.
A new study found that the O139 cholera variant lost antimicrobial resistance and changed toxin production, leading to its unexpected decline. The findings suggest continuous monitoring of genetic changes is key to preventing future outbreaks.
A third dose of the Pfizer-BioNTech vaccine significantly lowers the risk of SARS-CoV-2 infection, COVID-19 hospitalizations, severe disease, and related deaths during the Delta variant surge. The study involved 18,000 residents of long-term care facilities in Israel.
Researchers at the German Primate Center found that emerging Omicron subvariants BA.2.12.1, BA.4, and BA.5 are inhibited less efficiently by existing therapeutic antibodies, which may reduce protection against future infections. The study suggests these variants have acquired biological traits allowing for more efficient transmission.
A large study found moderate protection against SARS-CoV-2 infection and symptomatic Covid-19 illness among vaccinated children, with greater protection observed in younger age subgroups. The research used Israel's Clalit Health Services database to control for confounding variables.
A study examined maternal immune responses and antibody transfer from mother to fetus for different COVID-19 vaccines across pregnancy trimesters. mRNA vaccination induced higher levels and functions against SARS-CoV-2 variants, including Omicron, while first and third trimester vaccination led to enhanced maternal immune responses.
A new technique for detecting typhoidal Salmonella infections has been developed, allowing for faster and more accurate tracking of infections, particularly in rural areas. The approach detects typhoid antibodies in dried blood spots, providing valuable information for vaccination planning and disease surveillance.
A comparison analysis found that Canada handled the pandemic well by most measures, thanks to strict policies and high vaccination rates. The analysis showed that if US vaccination and death rates occurred in Canada, about 5.9 million fewer Canadians would have been vaccinated and 68,800 more would have died from COVID-19.
Researchers from Dartmouth's Geisel School of Medicine found a significant rate of new TB infections among Tanzanian adolescents. The study used serial testing and identified transient, persistent, and irregular conversions between positive and negative IGRA test results.
A Brazilian patient with a rare genetic disease was treated with breast milk donated by a vaccinated woman, boosting her IgA levels and eliminating the virus. The treatment was successful after a week, with the patient testing negative twice at ten-day intervals.
Researchers at Beth Israel Deaconess Medical Center found that newer Omicron subvariants BA.4 and BA.5 escape neutralizing antibodies induced by both vaccination and previous infection. These variants are now responsible for over 21% of new cases in the US, highlighting a shift in the COVID-19 landscape.
A fourth dose of the Pfizer-BioNTech vaccine provided high protection against severe outcomes from Omicron infection among elderly residents in Israeli long-term care facilities. The vaccine also offered modest protection against COVID-19 infections among this population during a surge in Omicron variant cases.
The study investigated changes in vaccine recipient demographics before and after digital and community-based outreach interventions in an underserved NYC community. The findings suggest a positive impact on vaccine uptake among racial and ethnic groups, highlighting the effectiveness of these interventions.
A research team at MedUni Vienna has discovered key mechanisms of mugwort allergy, laying the foundation for a potential vaccine. The study found that fragments of the major mugwort pollen allergen can be used for effective therapy, providing a promising first step towards causal therapy and prevention.
A new study found that COVID-19 booster shots significantly increase neutralizing antibodies in nursing home residents and their caregivers, offering improved protection against Omicron variants. This research highlights the importance of booster vaccinations for vulnerable populations, including those living at home.
A study found that over 60% of parents of children with kidney disease or hypertension are unsure or unwilling to vaccinate their child against COVID-19. Effective vaccines exist to protect children from COVID-19, and the findings highlight the need for clear communication to address parental concerns.
A joint modelling initiative predicted US COVID-19 cases would rise in July 2021 and peak in September, with low-vaccination states bearing the brunt. States with high vaccination rates averted over 1.5 million cases and 21,000 deaths.
The study investigates relative gaps in COVID-19 vaccination between ethnic groups, finding significant disparities in vaccination rates. Researchers use different population estimate methodologies to analyze the resulting population risk among people in New Zealand.
The study investigates the perspectives of Latinx individuals who were unvaccinated, hospitalized for COVID-19, providing insight into their experiences with vaccine hesitation. The researchers aimed to understand the reasons behind this behavior and how it relates to healthcare access and cultural factors.
An analysis from Rutgers researchers highlights that different vaccine allocation strategies may be more effective in minimizing COVID-19 deaths in low-income countries. The experts suggest considering factors such as socioeconomic realities, cultural values, and life expectancy when making decisions.
A systematic review and meta-analysis found that physical activity can boost the body's immune response to influenza vaccination. The study analyzed data from over 100,000 individuals and concluded that regular exercise may provide better protection against the flu.
Researchers found a potential association between COVID-19 vaccines and an increased risk of coagulation disorders and coronary artery disease events. The study analyzed data from Norway, Finland, and Denmark to investigate this connection.
A recent study found that rural counties in the US experienced higher mortality rates during the Omicron wave of COVID-19, particularly among unvaccinated patients. Vaccination coverage was a significant factor in reducing patient outcomes.
Both Moderna and Pfizer COVID-19 vaccines have a low risk of adverse events over a 38-week period. The study found rare adverse events after both vaccines, particularly when compared to the health risks driven by SARS-CoV-2 infection.
Researchers analyzed data from 433,000 veterans to assess vaccine side effects over 38 weeks. The study found no significant differences in adverse event risk between the two vaccines.
Researchers developed a rapid blood assay that measures the magnitude and duration of immunity to SARS-CoV-2, allowing large-scale monitoring of population immunity. The test takes less than 24 hours to perform and is scalable to use broadly in the population.
A randomized clinical trial involving 16,000 participants found that receiving text messages had no significant impact on COVID-19 vaccination rates compared to telephone calls. The study suggests that alternative communication methods may be more effective in promoting vaccine uptake.
A new analysis suggests expanding COVID-19 vaccine delivery to low-income countries would save hundreds of thousands of lives and be cost-effective. The study found that achieving 60% vaccination coverage in these countries could prevent up to 68 million infections and 160,000 deaths.
A polio outbreak risk has been heightened in western Ukraine due to the reintroduction of wild-type poliovirus and low immunization rates. The situation has worsened with the COVID-19 pandemic, ongoing war, and healthcare reforms, leading to a public health emergency declaration.
A new study presented at ENDO 2022 found that inactivated and mRNA COVID-19 vaccines do not cause significant fluctuations in thyroid function or increase the risk of emergency department visits among patients treated for hypothyroidism. The research suggests that these vaccines can be a safe option for this vulnerable population.
A new preclinical study by Weill Cornell Medicine researchers shows that naturally-produced IgG antibodies in breast milk can protect infants from infection-induced diarrheal illness. These antibodies enhance infant immunity against bacterial pathogens causing gastrointestinal diseases.
A UVA researcher is using a harmless amoeba to develop an innovative treatment for deadly C. difficile infections in young children. The approach has the potential to deliver specific antibodies directly to the gut, reducing the need for antibiotics and addressing a growing public health threat.
A new study from Mount Sinai Heart found that heart failure patients unvaccinated against COVID-19 are three times more likely to die from it than those who are fully vaccinated and boosted. The research also shows that these unvaccinated patients face higher risks of hospitalization and ICU admission if infected with the virus.
A new study found that patients with long COVID have virus-specific T cell levels over 100 times higher than those who recovered from the disease. The research team's findings suggest hidden viral reservoirs may be causing long-term symptoms, guiding future treatments towards vaccines and antiviral medications.
A survey study of 1,125 adolescents and young adults investigated their experiences and perceptions of COVID-19 vaccine incentives. The study found that many participants were influenced by social media and family members when deciding whether to get vaccinated.
A study led by the University of Pittsburgh School of Public Health analyzed health care workers' motivations for vaccination and how they share their experiences on social media. The findings suggest that emphasizing 'freedom from fear' and addressing misinformation can be effective in reducing vaccine hesitancy.
A new study found that 82% of teens and young adults are open to COVID-19 vaccine incentives, but 21% question their ethics. Most youth believe incentives will promote vaccination and serve the greater good, while some express concerns about bribery or eroding trust in vaccines.
Researchers assessed the protection against symptomatic COVID-19 among Moderna vaccine trial participants and found a significant durability of protection over time. The study showed that the vaccine remained effective in preventing severe symptoms even after multiple doses were administered.
Researchers discovered that pregnant women produce super antibodies to protect their newborns by altering the structure of sugars attached to the antibodies. This molecular change allows immunoglobulin G to stimulate immunity through receptors that respond specifically to deacetylated sugars, providing expanded protective role.
A randomized clinical trial found that vaccinating household chickens increased consumption of high-protein foods, leading to improved growth and reduced child stunting in rural Kenya. Children from vaccinated households showed a 24% increase in protein-rich food intake and significant gains in height and weight.
Researchers at Nagoya University developed a chemical-only process to create customized mRNA vaccines, offering an inexpensive and large-scale production of mRNA. The new method allows for precise molecular design and stable mRNA with improved translational activity.
A recent study of nearly 114,000 patients found that the risk of a COVID-19 breakthrough infection was low overall, but higher in people with HIV. The study highlights the need for continued vaccination efforts and monitoring among this vulnerable population.
A new study by University of Maryland researchers found that people in Republican counties were more likely to die from COVID-19, with nearly 73 more deaths per 100,000 people compared to Democratic counties. The disparity was due to structural and policy differences in the more conservative counties.
A third dose of COVID-19 vaccine may be essential for kidney transplant patients in Japan to prevent severe disease and infection. Researchers found that only a third of patients developed sufficient antibodies after two doses, highlighting the need for additional protection.