Articles tagged with Viruses
Researchers from the University of Jyväskylä have unveiled an innovative, label-free ratiometric fluorosensor for selective and sensitive detection of enteroviral RNA. The sensor outperforms traditional methods in terms of sensitivity and selectivity.
Researchers at the University of Surrey warn that mpox's sustained human-to-human transmission poses a significant risk to global health. The virus can cause a painful rash, fever, and swollen glands, and has the potential to spread among children, who are at greater risk of serious illness.
The model analyzes host characteristics and virus genetics to predict potential reservoirs for orthopoxviruses, including smallpox and mpox. It identified Southeast Asia, equatorial Africa, and the Amazon as hotspots, overlapping with areas of low vaccination rates.
Researchers from La Jolla Institute for Immunology and UC San Diego discover Zika virus blocks dendritic cells' ability to alert T cells, while dengue virus stimulates pro-inflammatory cytokines, leading to a stronger but uncontrolled immune response. Understanding these differences is key to developing life-saving vaccines.
A new rapid diagnostic test can accurately identify pregnant women with high levels of the hepatitis B virus, allowing for early detection and intervention. This breakthrough test could have a significant impact on hepatitis B management in low- and middle-income countries, reducing the spread of the infection.
A new study found that recombinant adeno-associated virus (rAAV) capsids contain single-stranded DNA impurities derived from plasmid and host cell DNA. The researchers suggest that the adverse effects of these impurities may differ from those of double-stranded DNA, highlighting the need for further evaluation.
A recent study identifies 11 natural compounds that can inhibit the SARS-CoV-2 spike protein, including caffeine, which exhibits high binding stability and excellent solubility. The discovery highlights the potential of natural products in combating COVID-19 and demonstrates the versatility of widely known compounds like caffeine.
A new USF study identifies several viruses associated with Karenia brevis, the single-celled organism causing red tide. The finding marks an initial step toward exploring viruses as biocontrol agents for red tide blooms.
Researchers at Martin-Luther-Universität Halle-Wittenberg have developed a new avenue to combat the Cucumber mosaic virus by directing the plant's natural defences. The RNA-based active agents have shown high efficacy in laboratory experiments, protecting 80-100% of treated plants from infection.
A Phase 1 clinical trial is enrolling up to 55 healthy adults to test the safety and immunogenicity of a candidate Lassa vaccine. The trial aims to prevent Lassa fever, a viral hemorrhagic disease that can cause permanent hearing loss.
Oropouche virus has been reported in travellers from Canada and the US who visited Bolivia, Brazil, Peru, and Cuba, with symptoms including fever, chills, headache, and muscle aches. The risk of miscarriage and microcephaly is high for pregnant individuals, prompting cautionary measures.
Researchers at Penn State discovered that Zika virus builds tiny tunnels called tunneling nanotubes to transport material needed to infect nearby cells, including in placental cells. This allows the virus to cross the placental barrier without raising alarm in the immune system.
A recent study identified 26 viral species from ticks in Hulunbuir, including four novel viruses and 11 new strains of human-pathogenic viruses. The study highlights the potential spillover risk of these viruses and underscores the need for One Health strategies to monitor emerging tick-borne viruses.
A lack of access to dentists during the COVID-19 pandemic led to a surge in hospital visits for children's painful dental issues. Research found a 62% increase in emergency department visits from Medicaid-insured kids, with young children being seen twice as often.
The European Centre for Disease Prevention and Control reports a significant increase in measles cases across EU/EEA countries, with eight out of ten unvaccinated individuals contracting the disease. Vaccination levels fall short of the 95% target, leaving vulnerable populations susceptible to measles.
A study published in Human Gene Therapy found that over half of individuals with Niemann-Pick disease type C1 lacked neutralizing antibodies against AAV2 and AAV9. This absence of antibodies may impact the effectiveness of gene therapy treatments for this rare disorder.
Research finds that certain viral antibodies and genetic risk factors can increase MS risk, with elevated antibody levels combined with a specific gene variant associated with strong increased risk. The study also identifies potential biomarkers for early diagnosis.
A survey reveals that most people are unaware of HPV's impact on cancer risk and its spread. The human papillomavirus (HPV) is more common among men than women, and the virus is associated with rising rates of oropharyngeal cancers, which can take years to develop after initial infection.
Scientists discovered a protective variant of the HAQ-STING gene that prevents COPA Syndrome. This finding opens the door to a new gene therapy for the condition, which currently has no cure.
Lyme disease is a bacterial infection transmitted by ticks, posing an increasing threat in the U.S. Montana State University's Patrick Secor will study adaptations in Borrelia burgdorferi to illuminate how it circumvents its host's immune system. The goal is to discover new vaccine antigens and develop more effective treatments.
Researchers developed a simple test that detects antibodies against four dengue virus serotypes and zika virus. The test achieved high sensitivity (87.8%) and specificity (91.4%), indicating its potential to monitor specific antibodies produced in response to exposure to the viruses.
Enodia Therapeutics, launched by Institut Pasteur and Argobio, leverages AI to develop selective inhibitors of the Sec61/translocon molecular complex for treating cancer, inflammatory diseases, and viral infections. The company's breakthrough technology has earned a prestigious Golden Ticket Award from Pfizer.
The American College of Chest Physicians (CHEST) has developed an educational program and formal certification exam for nurse practitioners and physician assistants/associates in critical care. The program validates clinical expertise and demonstrates professional acumen, aiming to improve patient care.
A new study led by La Jolla Institute for Immunology scientists found that children who experience multiple dengue virus infections develop protective T cells, which help fight the virus. These T cells appear to be key to dengue virus immunity and may inform the development of a vaccine that prompts a similar response.
A synthetic retinoic acid-inducible gene I (RIG-I) agonist RNA has been shown to induce innate immune signaling and death of hepatocellular carcinoma cells in vitro. The addition of recombinant interferon-b potentiated this cell death, suggesting a potential new mechanism for treating patients with liver cancer.
Researchers have identified a new variant, clade 1b, of the mpox virus that has become more infectious and is spreading rapidly across borders. The study found that this variant primarily spreads through heterosexual contact in densely populated areas, with an estimated fatality rate of 3.4%.
Researchers found that Copia's capsid plays a crucial role in controlling structural synaptic plasticity at the Drosophila neuromuscular junction. The study suggests that this parasitic genome element influences neuronal communication and behavior.
A study on Nigerian healthcare workers found that excessive iron levels increased the risk of catching COVID-19, while moderate deficiency didn't offer protection. The research highlights an evolutionary tradeoff between iron's benefits for immune function and its potential risk to pathogens.
Researchers at the Institut Pasteur have gained a better understanding of how mpox variants become resistant to tecovirimat. They found that the drug works by binding two phospholipases together, preventing viral particles from spreading. This knowledge will help develop new antiviral treatments effective across all mpox strains.
Scientists have developed a new technique called BioSonic spectroscopy, which uses short pulses of light to observe the nanoscale motion of virus particles. This allows researchers to capture the unique signature or 'sound' of each biological system, providing a new way to understand biology and potentially aiding in disease prevention.
A new retrospective study found that nearly half of patients with fever of unknown origin in sub-Saharan Africa had a detectable pathogen, including bacterial strains and hemorrhagic fever viruses. The study highlights the need for strengthened laboratory capacity to improve diagnosis and treatment.
Researchers discovered immune cells that can recognise influenza (flu) viruses even as they mutate, providing a potential solution to the annual updates of flu vaccines. The study found that certain T cells, which play a critical role in fighting infections, can detect multiple flu strains, even those that have evolved over a century.
Researchers found positive correlations in susceptibility to viruses across diverse fruit fly species, suggesting a general pattern of resistance. The study's findings have implications for understanding viral evolution and predicting pandemics.
The Human Virome Characterization Center at UCLA will investigate the diversity of viruses naturally inhabiting the human body along the oral-gut-brain axis. The center's discovery team will characterize virome richness, diversity, and structure in healthy individuals across different age groups and ethnic backgrounds.
The dengue virus uses its envelope protein to capture human plasmin, enhancing the permeability of the mosquito midgut. This interaction is crucial for viral infection, and understanding it could lead to innovative approaches to tackle vector-borne viruses.
Researchers are investigating the impact of virus infections on honeybee health, including flight performance and heat shock stress response. The team is also exploring potential supplements to boost immune strength and reduce virus infections in honeybees.
Researchers from Osaka University found that Japan's state of emergency declarations led to increased hygienic behaviors and risk perception, which persisted even after the policy was lifted. However, older people became less fearful of COVID-19 and were less likely to wear masks.
Researchers at the University of Queensland have identified a new henipavirus, Camp Hill virus, in shrews in Alabama, USA. The discovery suggests these viruses may be more globally distributed than previously thought, with implications for human health and vaccine development.
MSK researchers contribute to the Human Virome Program, which aims to map viruses living in and on humans. The project seeks to understand how these viruses contribute to human health and disease, potentially revealing links between viral infections and cancer outcomes.
A new EU research project, Vigilant, aims to develop compounds with broad antiviral activity to limit the spread of viruses. The project will focus on viral envelope proteins and investigate innovative approaches to antiviral therapy.
Ian Tregillis and George R.R. Martin develop a formula to model the dynamic behavior of the Wild Card virus in the science fiction series. The formula is based on Lagrangian dynamics and applies to the fictional universe's viral system.
A new study aims to characterize the human virome, exploring its role in health and disease. The project will investigate nonpathogenic viruses and their potential impact on human phenotypes over time. Researchers hope to discover novel biomarkers for health and disease, as well as new therapeutic approaches.
Researchers at Duke University developed an acoustofluidic integrated molecular diagnostics chip, AIMDx, that uses tiny vortexes to detect dangerous viruses. The vortexes trap cells, bacteria, and larger bioparticles, purifying samples for biomedical tests.
A meta-analysis found a dose-dependent relationship between alcohol consumption and the risks of cirrhosis and HCC in HBV patients, with daily alcohol consumption exceeding 12g increasing risk by 6.2% and 11.5% respectively.
Researchers at Garvan Institute of Medical Research discovered how chronic hepatitis C infection leads to autoimmune disease by identifying 'rogue clone' B cells with harmful autoantibodies. The study found that a triad of genetic mutations is required for the autoimmune disease to develop, opening new paths for treatments.
New research reveals viruses play a significant role in carbon, nitrogen, and phosphorus cycles. Viral aggregation is proposed to describe the accumulation of lytic products in soil/sediment environments.
The Zika virus hijacks the host protein ANKLE2 to assist its own reproduction, which is important for brain development. This interaction allows the virus to hide from the immune system and replicate more efficiently.
Researchers at Penn Medicine are embarking on a comprehensive study of the human virome, a vast and understudied network of viruses residing within our bodies. By exploring the virome's role in human health and disease, the team aims to uncover new treatment options and prevention strategies.
The Community and Household Acute Respiratory Illness Monitoring (CHARM) Network will track how respiratory illnesses spread over time, assess immune responses, and study household transmission. UC San Diego will enroll 2,000 individuals and serve as the centralized data hub, providing insights to inform public health responses.
Researchers document five cases of parvovirus B19-induced myocarditis in preschoolers from northern Greece, highlighting the virus's unique impact on endothelial cells. The study emphasizes the importance of quick diagnosis and treatment to reduce mortality and morbidity in children.
Researchers developed a gene therapy approach to treat chronic hypereosinophilia by delivering an anti-human eosinophil antibody via AAV-based gene therapy. The therapy successfully suppressed blood eosinophil levels in mice, showing promise as a potential treatment for the condition.
Researchers developed AI-driven therapeutic platform mimicking viral structures to deliver therapeutic genes to target cells. The innovative approach achieved precise symmetrical structures and effectively delivered payloads, paving the way for breakthroughs in gene therapies and next-generation vaccines.
Scientists at Baylor College of Medicine have identified liquid-like condensates as replication hubs for human norovirus. These biomolecular structures are dynamic and can merge or divide, exchanging materials with their surroundings.
Researchers found that cellular RNA molecules help regulate antiviral signaling by activating the MAVS signalosome. This signaling pathway is crucial for coordinating immune responses against virus invasion. The study's findings suggest a potential role for RNA-based therapeutics in combating infections and autoimmune diseases.
Researchers found a link between chronic gut infection with cytomegalovirus and the development of Alzheimer's disease, suggesting that the virus may contribute to immune system changes and brain inflammation. The study suggests that existing antiviral drugs could potentially treat or prevent this form of Alzheimer's.
A live-attenuated vaccine against Lassa virus has been developed and shown to be safe and 100% effective in protecting guinea pigs from the virus. The vaccine was created by modifying the genome of the virus to prevent it from causing disease, making it a promising candidate for future clinical trials.
A study on capybaras infected with a rabies variant linked to vampire bats has been published in the journal Veterinary Research Communications. The research found that the viral strain was transmitted by vampire bats, which likely fed on the capybaras' blood during habitat disturbance.
Researchers discovered a giant virus, FloV-SA2, that encodes a ribosomal protein called eL40. This protein is crucial for translating genetic information into proteins, the building blocks of life. The study reveals new insights into how viruses interact with host cells and manipulate cellular metabolism.
A new study from Karolinska Institutet and Queen Mary University of London has developed a method to divide HPV-positive women into three risk groups, based on the variant of the HPV virus and the amount of virus present in the self-test. This method could enhance cervical cancer screening for high-risk women.
Countries that took measures early experienced lower excess mortality rates and coped better economically. A surveillance system capable of quickly tracking virus spread is crucial for effective response.