Articles tagged with Viral Infections
Researchers discover cBAF protein complex plays crucial role in controlling T cell fate during infection. The study reveals how chromatin remodeling and genetic code accessibility influence the development of cytotoxic T cells into effector and memory subtypes.
A machine-learning study has found that individual characteristics, including age and weight, determine which drug combinations most effectively reduce COVID-19 recurrence rates. The study used real-world data from a hospital in China and identified unique treatment combinations for different demographic groups.
A phase 3 trial found that the VLA1553 vaccine candidate produced an immune response in 99% of participants, inducing protection against disease. The study also showed that the vaccine was generally safe and well-tolerated across all age groups, with most adverse events being mild or moderate.
Scientists have developed an innovative platform using engineered human tissue to study how pathogens carried by mosquitoes impact and infect human cells. This breakthrough holds promise for studying other disease vectors like ticks, which spread Lyme disease.
Researchers have discovered a common virus hidden within the genomes of coral symbionts, which can threaten the stability of the symbiotic partnership. Climate change and stress can trigger the release of this non-retroviral RNA virus, leading to disease in corals.
A new study published in JAMA Neurology suggests that multiple sclerosis is more prevalent in Black Americans than once thought, with the disease also affecting Northern regions of the US. The study's findings have significant implications for public policy and resource allocation towards historically under-represented populations.
A UNIGE team has identified how the influenza A virus manages to penetrate cells to infect them by hijacking the iron transport mechanism. By blocking this receptor, researchers were able to significantly reduce its ability to invade cells, highlighting a potential strategy for treating influenza virus infections.
Scientists at St. Jude Children's Research Hospital discovered how the current H5N1 avian influenza virus gained new genes and greater virulence as it spread across North America. The researchers found that the virus could severely infect the brains of mammalian research models, a notable departure from previous related strains.
Researchers analyzed hospitalization and fatality rates of SARS-CoV-2 infection in England between May 2020 and March 2022. The study found that the mass vaccination campaign significantly reduced severe effects of the virus, with notable improvements after the emergence of Alpha, Delta, and Omicron variants.
Scientists at La Jolla Institute for Immunology found that MAIT cells can be tuned to fight different pathogens via their metabolism, with two distinct subtypes responding to sugar and fat. This discovery may inspire new vaccines and cell therapies to boost the immune response against specific pathogens.
Scientists at Scripps Research have determined the structure of the critical protein complex that lets Lassa virus infect human cells, identifying new antibodies and vaccine targets. The research also found a high level of conservation across different lineages of the virus, paving the way for more effective vaccines and treatments.
Researchers used a multiomics approach to analyze changes in transposable elements after influenza A virus infection, identifying transcription factors contributing to individual responses. The study provides insights into the variable severity of illness among individuals infected with the same virus.
Researchers at the University of Exeter have captured the structure of a commonly used phage, filamentous phages, which will enable the development of new biotechnology applications. The new insights gained from this research will help improve phage display and other uses in drug discovery.
A Phase 3 trial found that mailing HPV self-collection kits and scheduling assistance increased cervical cancer screenings among under-screened, underserved women. The study demonstrated the effectiveness of this approach in breaking down access barriers to screening.
Researchers have identified a new group of mitochondrial viruses confined to arbuscular mycorrhizal fungi Glomeromycotina, which may represent an ancestral lineage of mitoviruses. These large duamitoviruses possess distinct characteristics and are globally distributed in ecological niches occupied by glomeromycotinian fungi.
A study by UMC Utrecht shows that corona patients can measure their blood oxygen levels at home using a pulse oximeter, feeling safe and experiencing more control. This method does not increase GP visits or hospitalization but contributes to relieving caregivers and keeping healthcare affordable.
A new immunotherapy treatment developed by UCF researchers uses targeted IL-2 to fight respiratory viral infections with improved outcomes in animal studies. The treatment promotes an antiviral inflammatory response and reduces bronchial inflammation.
A gene-edited calf, named Ginger, has been born with reduced susceptibility to a major viral pathogen, bovine viral diarrhea virus (BVDV). If confirmed by follow-up research, this approach could offer long-term potential to reduce antimicrobial and antibiotic use in the cattle industry.
Scientists have successfully produced a gene-edited calf with resistance to BVDV, a virus costing the US cattle sector billions annually. The edited calf, named Ginger, displayed significantly reduced susceptibility to the virus without adverse health effects.
A gene-edited calf demonstrates reduced susceptibility to bovine viral diarrhea virus (BVDV) after intentionally altering the CD46 receptor with CRISPR/Cas9. The healthy calf showed no measurable infectious virus in its blood, despite both calves developing antibodies to the virus.
The MUSC Hollings community health van has increased access to the human papillomavirus (HPV) vaccine in South Carolina's underserved communities. The vaccine is linked to six different kinds of cancer, including cervical, throat, anal, penile, vaginal and vulvar cancers.
A multi-institutional study found that dengue virus sequences have evolved dramatically in India, with different serotypes deviating from their ancestral sequences. Dengue 2 has become more dominant across the country, while Dengue 4 is making a niche for itself in South India.
Researchers deciphered the structure of the protein methyltransferase from the monkeypox virus, identifying a target for antiviral drugs. The findings may lead to the creation of new antivirals effective against not only monkeypox but also COVID-19.
A molecular autopsy revealed that a young child with mild COVID-19 symptoms died from cardiac arrest due to an atypical coronary artery anomaly and underlying Noonan syndrome, a rare genetic disorder.
A new study in Viruses journal reveals significant viral diversity in bats and pig farms in Viet Nam, highlighting the risks of CoV spillover. The research calls for increased surveillance and One Health action to prevent pandemic emergence.
The study found that the global prevalence of H. pylori infection declined from 58.2% in 1980-1990 to 43.1% in 2011-2022, with a decline of about 0.39-0.83% per year. Despite this decline, over 40% of the adult population still carries the infection, posing a significant burden on healthcare systems worldwide.
Researchers successfully isolated infectious SARS-CoV-2 particles from hospital air samples collected over a year ago, demonstrating the presence of viable virus particles in aerosols. This breakthrough provides new insights into airborne transmission and informs the development of preventive strategies.
A new study at Umeå University reveals that tick-borne encephalitis virus infects distinct brain cell types and regions depending on the immune system's activation status. The researchers mapped the virus's behavior in the brain, identifying specific areas and cells infected by TBE virus.
Researchers studied H7N9 epidemic waves in China from 2013 to 2017, analyzing gene sequences to build phylogenetic trees. They found the virus likely circulated in poultry for months before being detected, and suggest continuous monitoring of animal health is crucial
A new discovery by researchers at the University of Warwick has found a simple material that can prevent bacterial viruses from contaminating laboratories and microbial factories. This breakthrough aims to develop next-generation industrial biotechnologies and remove a bottleneck in fundamental research.
A new study by the Peter Doherty Institute found that First Nations populations are significantly more likely to be hospitalized and die from influenza compared to non-Indigenous populations. Influenza-associated hospitalization and mortality rates were consistently higher in First Nations communities globally.
Researchers developed a multifunctional patch that detects plant diseases and abiotic stresses like drought or salinity. The patch can detect viral infections up to a week before symptoms appear, enabling growers to take action earlier.
A study published in Scientific Reports predicts that less than 20% of endangered mountain gorillas would survive more than 100 days past the first confirmed case of Ebola infection. Vaccination strategies are suggested to increase survival rates, with at least half of habituated gorillas vaccinated within three weeks of confirmation.
A study published in JCI Insight found that pregnant women display robust immune responses to SARS-CoV-2 infection, comparable to those of non-pregnant women. Key differences were observed in the dynamics of innate immune cells at the first line of defense towards viral infections.
A Yale study found that the tick-borne Powassan virus is being transmitted in concentrated community clusters throughout New England. The research reconstructed the history of Powassan in the region and estimated when branches of the virus's 'family tree' diverged, piecing together its evolution and spread.
Researchers discovered multiple virus types persisting within organs such as kidneys and brain, challenging our understanding of the human microbiome. The findings suggest viruses may contribute to chronic diseases like cancer or autoimmune disorders, while also playing a role in immune system regulation.
A clinical study has shown that vaccination during pregnancy can effectively prevent severe respiratory syncytial virus (RSV) disease in infants. The vaccine was found to be well-tolerated and provided over 80% protection against RSV illness, with benefits expected for vulnerable populations worldwide.
Researchers at Children's Hospital of Philadelphia discovered that viral proteins use phase separation to coordinate the complex process of replicating viral genomes and then encapsulating them in a viral particle. This process allows for the orderly and coordinated formation of infectious viral offspring.
A study published in Journal of General Internal Medicine found that 41% of patients with post-acute sequelae of COVID-19 (PASC) had moderate to severe sleep disturbances. Black patients were three times more likely to develop these disturbances, highlighting the need for race-specific interventions to address disparities.
Researchers at CZ Biohub SF developed a new diagnostic method for LRTI in children, leveraging machine learning and genomics to identify pathogens with high accuracy. The method uses metagenomic sequencing data to analyze gene expression and microbial abundance, providing a more holistic approach to diagnosing the condition.
Researchers found that infected mosquito saliva contains molecules called sfRNAs that can blunt the body's immune response. These molecules are injected during the mosquito bite, making it more likely for people to become infected with dengue virus.
A recent study found that ocean warming triggers dinoRNAV infections in coral colonies, intensified in unhealthy colonies. This is the first empirical evidence of reef-wide dynamics of viruses infecting coral symbionts during heat waves.
Scientists at St. Jude Children's Research Hospital found a link between hemagglutinin protein stability and flu vaccine effectiveness, as well as pandemic potential in new strains. Incorporating this stability into the vaccine could prevent the emergence of unstable viruses.
Researchers at La Jolla Institute for Immunology have developed a high-resolution view of the LCMV glycoprotein, revealing its structure and potential vulnerabilities. The breakthrough enables the development of an engineered antibody that can prevent LCMV disease, offering a new route to treatment.
A study published in the Journal of Infection found that mNGS was significantly more effective at detecting bloodstream infections than conventional microbiological tests (CMTs), identifying 187 infection cases compared to CMTs' 81. Viral infections were the most common type, with CMV being the leading cause.
A new mosquito species, Culex lactator, has been found in Florida, with thriving populations reported in three counties. Scientists are concerned about the potential for this species to transmit diseases, particularly given the lack of research on its disease risk.
A study published in Nature Immunology found that female mouse and human NK cells have more of a specific epigenetic regulator called UTX, which boosts anti-viral function while repressing NK cell numbers. This suggests that therapies need to be tailored to individual differences, including sex.
A new study from Cummings School of Veterinary Medicine at Tufts University found that highly pathogenic avian influenza (HPAI) was associated with the deaths of over 330 New England harbor and gray seals. The virus was detected in birds and seals on the same beach, highlighting a potential route of transmission.
A team of researchers has developed a sensitive method to detect viral nucleic acids using 'glow-in-the-dark' proteins, achieving high sensitivity and speed for clinical diagnostic tests. The LUNAS assay successfully detected SARS-CoV-2 RNA in under 20 minutes at low concentrations.
Researchers at Linköping University found that C-reactive protein has a beneficial function in systemic lupus erythematosus, reducing interferon activity and promoting milder disease. The study's findings suggest new treatment strategies to reduce immune complexes and elevated interferon levels.
A study published in Nature found that a small group of neurons in the airway play a pivotal role in alerting the brain about flu infections. The researchers also identified a second pathway from the lungs to the brain that becomes active later in the infection, which may hold promise for developing new treatments.
The American Society for Biochemistry and Molecular Biology annual meeting will explore cutting-edge approaches in biochemistry and molecular biology. Leading experts will discuss the latest discoveries and advancements in fields such as AI, RNA regulation, and carbohydrates in health and disease.
A study from the University of Georgia found that less than half of bald eagle nests in coastal Georgia successfully fledged at least one chick in 2022, a 30% decrease below average. The highly infectious H5N1 avian influenza virus is killing off unprecedented numbers of mating pairs of bald eagles, with the number of infected wild bir...
Researchers analyzed zika virus effects on tumor cells and healthy cells, discovering its potential to treat prostate cancer but also triggering a persistent inflammatory process that damages the male reproductive system. The study's findings suggest long-term treatment could lead to recurrence of prostate cancer.
Scientists at Universitat Autonoma de Barcelona have created spherical nanoparticles inspired by amyloid proteins that bind to the SARS-CoV2 spike protein with high affinity, preventing cell infection. The biocompatible and stable nanostructures also show great potency in blocking viral particles.
A study by researchers from the University of Liège shows that group 2 innate lymphoid cells educate alveolar macrophages, reprogramming them to protect against respiratory allergens. This discovery highlights the central role of ILC2s in shaping the alveolar niche and modulating immune responses.
Researchers identified genetic variants associated with susceptibility to Epizootic Hemorrhagic Disease (EHD) in white-tailed deer. The study found that deer with specific mutations are less susceptible to the disease, which has been on the rise in northern Illinois and neighboring states.
Researchers confirmed the first cases of canine distemper virus in tigers and leopards in Nepal, which can cause fatal neurological disease. The study found that 11% of tigers and 30% of leopards had antibodies to CDV, indicating prior infection with the virus.
A study published in eLife has linked infection with the bacterium Fusobacterium nucleatum to an increased risk of cardiovascular disease. The researchers found that individuals with high genetic risk scores for coronary heart disease were at elevated risk for cardiovascular events.
Researchers at Osaka University found that male patients with COVID-19 have a faster loss of circulating Treg cells, leading to dysregulated antibody responses. Females, on the other hand, have higher levels of these cells, which may help protect them from infection.