Articles tagged with Viral Infections
A new study reveals that 93.2% of pediatric allogeneic hematopoietic stem cell transplantation (HSCT) recipients experience infections post-transplant, with viral infections being the most common. The study identifies key risk factors and highlights the importance of personalized approaches in infection management.
A recent study published in Communications Biology reveals that the Sudan virus binds to human cells through a specific protein called NPC1, which enables it to attach with nine times greater affinity than Ebola. This discovery may contribute to the high fatality rate of the Sudan virus.
Researchers developed a powerful tool to detect SARS-CoV-2 variants with high transmission potential, pinpointing exact mutations driving spread. The model focuses on spike protein and other parts of the virus, enhancing ability to bind human cells and evade immune systems.
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.
Researchers at La Jolla Institute for Immunology discovered that tissue-resident memory CD8 T cells rise up to fight infections in the small intestine, using spatial transcriptomics technology. These immune cells are split between villi and crypts, with progenitor-like cells replenishing effector T cells.
The COMBINE project focuses on the critical virus-cell binding step, aiming to identify key factors and potential therapeutic targets involved early in viral infections. The team will use a combination of pioneering approaches to develop novel inhibitors and vaccine candidates.
Researchers at Harvard Medical School and Boston University have mapped the structure of the Nipah virus's polymerase complex, a key piece of its machinery. This discovery provides a detailed understanding of how the pathogen multiplies inside hosts and could inform the design of treatments.
Researchers analyzed data from a nationwide survey to understand the relationship between COVID-19 infection experiences and fear levels. The study found that mild infection experiences alleviated fear, while severe symptoms worsened it, and that fear decreased over time.
Researchers have identified the pathogens and diagnostic tests for the two diseases, revolutionizing cassava disease management in Latin America, the Caribbean, and Southeast Asia. The study, published in peer-reviewed journals, marks a significant milestone in fighting the spread of these devastating diseases.
Researchers found that a lower CD4+/CD8+ T cell ratio after 12-24 weeks significantly predicted HBsAg clearance in IHCs treated with peginterferon alpha. Higher baseline percentages of CD3+CD8+ cells and lower CD4+/CD8+ ratios were also associated with improved outcomes.
Researchers from UNIGE-HUG Centre and MSF successfully demonstrated the effectiveness of a hepatitis E vaccine in an outbreak in Bentiu, South Sudan. The study showed that two doses of the vaccine reduced the incidence of the disease and provided protection against severe symptoms.
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 at Indiana University found that bacteria secrete molecules, like coelechelin, which weaken competitors' immune systems and increase their vulnerability to phage infection. This discovery highlights the potential of phage-chemical combinations in treating antibiotic-resistant infections.
Researchers at the University of Gothenburg have discovered an antibody-like molecule, E10, that can protect mice from various influenza viruses. The molecule targets a conserved part of the virus's surface protein shared across multiple influenza types, providing effective protection against seasonal epidemics.
Stephania Cormier and colleagues lead a Frontiers in Immunology research collaboration to explain RSV's complex interplay with host immune responses. The team identifies gaps in knowledge, hindering therapeutics and vaccines development.
A new study by La Jolla Institute for Immunology researchers suggests that many people may already have immune cells on standby to combat the H5N1 virus. The study found similarities between H5N1 and seasonal influenza viruses, allowing scientists to predict cross-reactive T cell responses that could help decrease disease severity.
According to a new survey, over half of U.S. adults believe the RSV vaccine is effective in protecting infants from the virus, up from 42% last year. The rise in perceived effectiveness comes as several politicians have cast doubt on the vaccine's safety and efficacy.
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.
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.
Recent studies suggest HBV infection is associated with liver cancer stem cells, but the exact mechanisms are unclear. This study investigates the role of HBV infection in regulating the stemness of HCCs and its link to drug resistance.
The study analyzed the high burden of RSV-associated acute respiratory illness among young children in the U.S. and found nirsevimab to be effective against severe cases, highlighting the potential for substantial public health impact through increased prevention coverage.
Researchers discovered that BKPyV's large tumor antigen is expressed after the first round of cellular DNA replication, suggesting new drug targets to prevent kidney transplant failure. The study offers a possible solution by targeting host proteins required for re-replication, reducing the likelihood of virus resistance.
Researchers discovered a single mutation in the H5N1 virus that improves its ability to attach to human cells, potentially making it easier for humans to become infected. The study's findings stress the importance of continued genomic surveillance and public health preparedness to monitor potential genetic changes.
A UK study reveals a software tool increased child vaccinations by over 1,000; healthcare professionals praise digital tool's impact on timely vaccination. The 'APL-Imms' tool uses data to identify due vaccinations and helps reduce vaccine-preventable diseases.
Infectious disease experts suggest that hospitals closely monitor local and national cases of bird flu and screen patients with flu-like symptoms for contact with farm animals. Effective communication is essential for fostering trust and reducing anxiety among healthcare personnel, patients, and the public.
A new study found that gene therapy delandistrogene moxeparvovec significantly extended the median survival of Duchenne muscular dystrophy (DMD) rats to >25 months. Additionally, the treatment elicited statistically significant improvements in cardiac parameters and mobility.
Researchers simulated viral outbreaks to evaluate dispersal metrics from genomic sequences, finding that certain measures are less impacted by sampling size. The study reveals the relationship between viral spread and host animal dispersal capacity, as well as human interference factors.
Researchers at the University of Illinois have created a DNA-made nanorobot called NanoGripper that can pick up COVID-19 viruses for rapid detection and block viral particles from entering cells. The device also has potential applications in cancer treatment and preventive medicine.
Researchers found impaired PD-1 activity can significantly reduce antibody diversity and quality in memory B cells. This may explain the increased rates of infection reported in patients with cancer receiving checkpoint inhibitor therapy.
Antimicrobial resistance is a growing threat in Detroit, requiring immediate attention from the community. Health experts recommend educating oneself about responsible antibiotic use and adopting practices such as hand hygiene and vaccination.
Researchers at UNC Health Care have discovered a little-known protein, PDGFA-associated protein 1 (PDAP1), that plays a crucial role in the replication and infection of hepatitis A virus. The protein is used by the virus to exploit the host cell's stress response, allowing it to produce its own proteins necessary for replication.
Chronic cigarette exposure in mice leads to altered gut and oropharyngeal microbiota, aggravating flu severity. The study suggests that the smoker's microbiota plays a significant role in respiratory disease and viral infection.
Researchers at UVA discovered the heart reacts to viral infections in one of three ways, with specific gene patterns indicating healing or damage. This finding may lead to better treatments for people at risk of heart failure and other chronic conditions linked to viral infections.
New information and guidance on monitoring and managing ranaviruses are provided in the second edition of Ranaviruses: Emerging Pathogens of Ectothermic Vertebrates. Ranavirus infections have been confirmed in over 177 species, causing mass die-offs and affecting biodiversity.
A study by Stanford Medicine researchers has identified a critical link between the composition of antibodies and the severity of influenza infection. The discovery highlights the importance of a specific sugar molecule on antibodies in determining whether an individual becomes mildly ill or severely ill from a flu infection.
A 2023 avian flu outbreak in Washington state killed 56% of a large breeding colony of Caspian terns and had significant impacts on the Pacific-coast population. The virus was also transmitted to harbor seals, causing an inflammatory response in their brains.
Researchers identified a protein in mammals that welcomes arteriviruses into host cells to start an infection. The team also found that an existing monoclonal antibody protects cells from viral infection, providing potential therapeutic strategy.
The project aims to reduce inappropriate antibiotic prescribing rates for children with acute respiratory tract infections, linked to adverse health events and antibiotic resistance. The program will provide tools and education to support providers in using narrow-spectrum antibiotics only when necessary.
Researchers discovered a new type of jeilongvirus in a Florida mouse, which can infect humans and non-human primates, posing a risk of serious illness. The virus is genetically distinct from others and can cause disease in various species.
Researchers developed a new surveillance technique to track COVID-19 diversity using genomic data, predicting variant emergence with high accuracy. The software can forewarn public health officials of impending outbreaks, enabling timely responses and more effective disease monitoring.
Researchers found a bovine H5N1 virus isolated from an infected worker to be transmissible and lethal in mice and ferrets, with limited efficiency. The virus is susceptible to certain antiviral drugs, including favipiravir and baloxavir marboxil.
Researchers found a highly pathogenic H5N1 strain isolated from a dairy worker that killed all infected ferrets, but the worker experienced mild symptoms and recovered. The study suggests that this particular strain may have died out and has not been detected in nature since.
The toolkit provides a base plan for collecting, processing, and reporting laboratory test results from VHF suspects, as well as guidance on infection prevention and control. It aims to bolster local preparedness efforts by offering scalable resources for healthcare facilities to develop practical action plans for isolation and initial...
Researchers are creating microphysiological systems to simulate infection and treatment in vitro, linking human lung and brain tissue models. This project aims to explore the relationship between respiratory diseases and neurological symptoms, potentially leading to new treatments.
Researchers analyzed mice infected with herpes virus and found that removing STING from nociceptors resulted in significant reduction of pain without affecting inflammation or viral load. The discovery may apply to other viral and bacterial infections, including COVID-19.
A new study explores Mpox clinical presentation, diagnostic approaches, and treatment strategies for patients with severe immunocompromised conditions. The study emphasizes the importance of supportive care and advanced therapeutics as first-line treatments.
Participants who received 2 doses of MVA-BN vaccine showed comparable or lower mpox antibody responses at 12 months compared to those receiving 1 dose. Protective immunity may be waning in individuals vaccinated with this vaccine, according to a recent study.
Researchers at the University of Wisconsin-Madison have imaged the structure of RSV proteins, which are crucial for the virus's interaction with host cells. The images reveal that pairs of F proteins may be a key target for destabilizing the virus and preventing infection.
Researchers found that natural immunity from previous flu infections enhances vaccine efficacy, leading to stronger and broader antibody responses. This could benefit individuals who contract the flu each year, potentially improving protection against future strains.
Research found a significant increase in sudden unexpected infant death (SUID) and SIDS rates during the COVID-19 pandemic, especially in 2021. The study suggests a link between infection, particularly respiratory syncytial virus (RSV), and SUID, highlighting the importance of safe sleep practices despite infections.
Researchers at Ohio State University discovered that a strain of rat hepatitis E can infect and spread among pigs, raising concerns about the potential transmission of the virus to humans. The study found that infected pigs shed the virus in their feces, highlighting the need for improved food safety procedures.
Researchers found that fever temperatures increase helper T cell metabolism, proliferation and inflammatory activity, while causing mitochondrial stress, DNA damage and cell death in a specific subset of Th1 cells. These findings may explain how chronic inflammation contributes to cancer development and suggest a fundamental way cells ...
Researchers at La Jolla Institute for Immunology have captured the first detailed images of the Ebola virus nucleocapsid structure, which is crucial for replicating in host cells. This breakthrough may accelerate the development of universal antivirals that target this viral structure to combat multiple filoviruses.
Scientists at WashU Medicine are developing strategies and tools to produce vaccines and antibody-based therapies for viruses from five understudied families. The effort aims to rapidly respond to potential future pandemics, with funding totaling $90M over three years.
Researchers found that seabirds' food-stealing behavior, known as kleptoparasitism, could be a transmission point for the deadly H5N1 avian flu virus. This behavior involves birds forcing others to regurgitate their prey, potentially spreading the disease through contaminated food items.
Children with asthma exposed to high levels of indoor allergens are at increased risk of developing respiratory viral infections. The study found that these allergens contribute to more severe pulmonary outcomes, including reduced lung function and increased inflammation.
Researchers studied how viruses move proteins in fruit flies to infect other animals. They found that viral proteins have built-in GPS signals guiding them to precise locations within the host cells. This knowledge could lead to new strategies for disrupting virus movement and controlling insect-borne diseases.
A Cornell University-led collaboration has developed a machine learning model that uses cell-free molecular RNA dregs to diagnose pediatric inflammatory conditions, including Kawasaki disease and Multisystem Inflammatory Syndrome in Children. The diagnostic tool accurately determines the patient's condition while monitoring organ health.
A new study found that higher BMI is associated with hospitalization for severe bacterial and viral infections. Conversely, mild hyperglycemia was not linked to increased risk of severe infections.
A study published by the European Respiratory Society found that hypertonic saline nasal drops reduced the length of the common cold in children by an average of two days. The treatment also reduced the need for medicines during illness and decreased family members catching a cold.