Articles tagged with Vaccine Research
Researchers have identified two effective antibodies that neutralize all known strains of COVID-19, including Delta and Omicron variants. These breakthrough antibodies could eliminate the need for repeated booster vaccinations and strengthen immune systems, especially in at-risk populations.
A third vaccine dose offers better protection against Omicron infection and hospitalization compared to two doses. The study found that a third dose maintained longer protection against infection for a longer time.
A PSU study reveals that Republican voters and Black people are among the most hesitant to get vaccinated against COVID-19. The research suggests a regional approach may be more effective than a universal one in boosting vaccination rates.
The study found that a booster shot's effectiveness is the primary factor influencing people's willingness to receive it. Those who believe in vaccine efficacy are more likely to accept the booster shot, especially if it is made by Moderna or Pfizer. A partisan divide persists, with Democrats more willing and Republicans less willing.
A population-based retrospective cohort study found that COVID-19 vaccination during pregnancy is not associated with an increased risk of preterm birth, small for gestational age at birth, or stillbirth. The study concluded that COVID-19 vaccination during pregnancy can inform evidence-based decision-making about its safety.
Research reveals that smaller artificial cells lead to greater separation of molecules, allowing for a new approach to manipulate material properties. This discovery has potential applications in pharmaceuticals and cosmetics industries.
Researchers found no excess mortality in Massachusetts from February to June 2022, despite rising COVID-19 cases and hospitalizations. This suggests high levels of immunity benefiting those at highest risk from SARS-CoV-2 infection.
Researchers compared HPV prevalence among women born in the 1980s, 1990s, and before/after vaccination periods. The study found significant differences in HPV prevalence between these groups.
Advanced cervical cancer rates have been rising in the US, with a significant increase among White women and higher prevalence among Black women, particularly those in their mid-to-late 50s. The study found that obesity and older age at first birth may contribute to the rise in this type of cervical cancer.
Researchers estimated long-term effectiveness of Pfizer-BioNTech COVID-19 vaccine against SARS-CoV-2 infection and critical infections among 3.2 million South Korean adolescents. The study found high vaccine effectiveness in preventing severe illnesses.
A large Canadian study found no association between Covid-19 vaccination during pregnancy and increased risks of preterm birth or stillbirth. The study analyzed data from over 85,000 births and concluded that vaccination is effective against Covid-19 in pregnant individuals and their newborns.
Researchers discovered that presenting COVID-19 vaccine side effects in the context of other risks, such as motor vehicle death rates, increases people's intention to take the vaccine. Adding a simple qualitative risk level, like 'very low risk', also boosts intentions.
A double-blind study found that 12.5% of placebo-treated individuals and 1% of BCG-treated individuals met criteria for confirmed COVID-19, indicating a 92% vaccine effectiveness. The BCG-vaccinated group also displayed protective effects against other infectious diseases, including fewer symptoms and reduced disease events.
A new MIT model simulates vaccine allocation strategies to predict the effect on cumulative deaths and infections in the US. The research finds that allocating more than 50% of available doses to non-vaccinated individuals can significantly increase lives saved and reduce infections.
Researchers found that two new techniques can help reduce needle fear in primary-aged children, including a distraction game and positive memory reframing. The study involved 41 children and showed promising results for broad vaccination programs.
Researchers assessed the effectiveness of adding a Pfizer-BioNTech booster to two doses of CoronaVac, finding reduced risk of symptomatic SARS-CoV-2 infection. The study used national data from nearly 14 million vaccinated individuals in Malaysia.
A recent study suggests that the BCG vaccine is effective in preventing tuberculosis (TB) in children under 5 years old. However, adolescents and adults may require additional protection to maintain immunity beyond childhood. The researchers emphasize the need for booster vaccinations and new TB vaccines to supplement the BCG vaccine.
A research team at the University of Oklahoma has developed a new approach to triggering an adaptive immune response. The study presents a method to create molecules that can integrate into cells, cause stress on their membrane, and release signals that recruit immune cells to their location.
A new vaccine formulation has protected newborn mice against respiratory syncytial virus (RSV) and evoked strong responses in human immune cells. The vaccine uses an adjuvant combination that stimulates type 1 T-helper responses, which are hard to stimulate in newborns but are needed for a strong defense against viral pathogens.
The new tuberculosis vaccine candidate VPM1002 shows its safety and efficacy in a study of HIV-exposed and non-HIV-exposed newborns. The vaccine has fewer side effects compared to the existing BCG vaccine, and elicits a similar immune response.
A study by UC San Diego researchers reveals health care facilities serving diverse populations were less likely to administer COVID-19 vaccines during the initial rollout. The findings highlight inequities in vaccine distribution, contradicting national policy goals.
The new phage T4-COVID-19 vaccine elicits superior mucosal immunity in mice, inducing robust humoral and cell-mediated immune responses. The vaccine provides complete protection against SARS-CoV-2 variants with minimal lung lesions and no impact on gut microbiota.
Researchers found no significant differences in placental health indicators, birth weights, or Apgar scores between vaccinated and unvaccinated women. Vaccination against COVID-19 was shown to be safe during pregnancy, protecting both mothers and babies from severe illness.
Researchers developed a mathematical model to predict the efficiency of nanoparticle delivery into cells, particularly in stem cells. They found that nanoparticles become trapped in bubble-like vesicles, preventing them from reaching their targets.
A recent study found that COVID-19 vaccines significantly reduced the risk of infection among NHS hospital workers in England during the second wave. The research showed that without vaccination, staff absence could have been 69% higher and infections peaked in late December 2020.
A study published in EMBO Molecular Medicine found that higher levels of memory B cells are associated with a reduced risk of COVID-19 vaccine breakthrough infection. Memory B cells selectively act against specific targets, providing long-lasting immunity and potentially protecting against diverse variants of the virus.
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 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 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 recent study published in The Lancet Diabetes & Endocrinology found that COVID-19 vaccines significantly reduced severe disease cases across all BMI groups. Vaccine effectiveness was slightly lower in underweight individuals, but substantial reductions in risk were observed for those with healthy weights and higher BMIs.
Scientists locate highly effective memory B cells in the lungs, which can boost the efficacy of vaccines used to protect against viral respiratory diseases. The discovery suggests a promising avenue for increasing vaccine effectiveness.
Researchers have discovered llama-derived immune particles that provide strong protection against a vast array of SARS-like viruses, including COVID-19. These 'super-immunity' molecules, known as nanobodies, could be used to develop a fast-acting, inhalable antiviral treatment or spray.
A clinical trial found that interrupting treatment with methotrexate, a common immune-suppressing drug, doubles the antibody response to COVID-19 booster vaccinations in vulnerable individuals. This improvement is maintained over a 3-month period and has no adverse impact on quality of life.
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.
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.
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.
Scientists have discovered a new, high-resolution view of the rabies virus glycoprotein, which could lead to more effective vaccines. The study's findings suggest that a better-shaped vaccine could provide lifelong protection against the deadly disease.
A recent study published in the New England Journal of Medicine found that COVID-19 vaccine immunity against new infection appears to wane rapidly, whereas people with a prior-infection were moderately protected from Omicron. Natural immunity provided strong and durable protection against severe illness.
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.
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.
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.
A new study published in JAMA Internal Medicine suggests that COVID-19 vaccination during pregnancy can provide protection to newborns against SARS-CoV-2 infection. The study found a lower incidence of confirmed SARS-CoV-2 infection in infants born to vaccinated mothers compared to unvaccinated mothers.
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.
A study analyzing 17 million patient GP records in England found that people with certain inflammatory immune conditions were at higher risk of dying or needing hospital care from COVID-19. The analysis suggests that targeting prevention strategies and early interventions towards those most at risk can help inform evidence-based policy.
A recent study published in JAMA Network Open found that people with HIV are at a higher risk of breakthrough COVID-19 infections after vaccination. The study analyzed data from nearly 114,000 fully vaccinated individuals and found that the HIV group had a 28% higher rate of breakthrough infections compared to the non-HIV group.
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.
Researchers at Karolinska Institutet have identified a new vaccine candidate based on nano-sized membrane vesicles that provide protection against multiple pneumococcal strains. The vaccine target two conserved lipoproteins MalX and PrsA, showing serotype-independent cross-protection.
A team of researchers has found a way to block the replication of one strain of the influenza virus in human cells by inhibiting a specific protein modification process called SUMOylation. This breakthrough could lead to highly effective treatments for the flu and other respiratory viruses.
A new study published in Cell compares the four types of COVID-19 vaccines and reveals that most people retain some immune response to SARS-CoV-2. The researchers found that immune memory may not prevent infection but helps fight severe disease.
Researchers found conversion messages to be more effective than one-sided messages in convincing vaccine-hesitant individuals to get vaccinated. The study showed that messages sharing a personal story of someone changing their mind about vaccines increased pro-vaccine attitudes and behavioral intentions among high hesitancy participants.
A recent study published in The BMJ found that three doses of the same vaccine or a combination of different vaccines work equally well in preventing COVID-19 infections. The research suggests that the number of vaccine doses is key to improving immunity, rather than the combination of vaccine types.
The UK's Joint Committee on Vaccination and Immunisation advises that COVID vaccines should be offered to 5–11-year-old children, but deem immunization as non-essential. Dr Hamid Merchant explains why current vaccines are not suitable for children due to efficacy and safety concerns.
Researchers at Brigham and Women's Hospital studied mRNA vaccine safety in pregnant women, finding no Spike protein expression in placentas. The study provides further evidence of mRNA vaccine safety, supporting expanded vaccination efforts for vulnerable populations.
A population-scale study found COVID-19 vaccination is effective in most cancer patients but offers lower protection and wanes quickly. Vaccine effectiveness was lower (65.5%) in cancer patients compared to the general population (69.8%), with higher hospitalization and death risks despite vaccination.
The research found that people expressing minor reservations about vaccination can limit the influence of vaccine sceptics and promote trust among neutrals. Countries with weak chains of influence between positive and neutral positions toward vaccination performed worse in terms of vaccine coverage.
A new study analyzing 8 cohorts of COVID-19 patients found that antibody responses in previously infected individuals were relatively stable, providing protection from reinfection unless the new infection was the Omicron variant. Vaccination also boosted protection, with rapid immune responses observed even after a single vaccine dose.
A new study by Gladstone Institutes and UC San Francisco found that infection with the Omicron variant provides weak immune response in unvaccinated individuals, failing to confer broad protection against other variants. In contrast, vaccinated individuals show stronger immunity against multiple COVID-19 strains.
Researchers evaluated various vaccination, testing, and surveillance measures to control Omicron variant spread on a university campus. The study found that routine surveillance and vaccination efforts were effective in reducing case numbers and hospitalizations.
A study involving hypothetical COVID-19 vaccines found that effectiveness and risk of side effects significantly influence people's vaccine preferences. The attributes of actual vaccines may not be as crucial for those already open to vaccinations.