Articles tagged with Viral Infections
A study by Lund University researchers mapped the effects of temperature on a virus particle's genetic material, revealing its rapid injection into cells at elevated temperatures. The findings suggest that higher body temperature may increase the risk of infection spread.
The HPV vaccine effectively clears most cancer-causing strains, but a new equilibrium of lower-risk HPV types emerges, suggesting a change in screening approaches. Vaccinating boys and girls may be necessary to clear all cancer-causing HPVs.
A study published in Cell Host and Microbe found that gender-neutral HPV vaccination is effective in preventing cervical cancer by inducing a stronger herd immunity. The vaccine protects against high-risk HPV types 16 and 18, which cause 70% of all HPV-related cervical cancers, and also provides cross-protection against low-risk types.
A team of experts identified 15 over-looked issues that could impact UK forests, including catastrophic ecosystem collapse, competition for water resources, and tree viral diseases. The research calls for urgent action to increase forest resilience.
A team of Spanish scientists discovered profound changes in dendritic cells during the immune response, which could lead to novel vaccines against bacterial and viral infections. The study found increased lipid peroxidation and MHC-I upregulation in post-synaptic dendritic cells, triggering efficient priming of CD8+ T cells.
A large-scale investigation found that one in seven people in the US reported having had long Covid by the end of 2022. Long Covid is associated with anxiety, low mood, and physical mobility problems. The risk of these symptoms appears to be lower for those who have been vaccinated.
Researchers at the University of Würzburg developed a new method to precisely analyze infection pathways of dangerous virus variants using 'clickable' pseudoviruses. These harmless impostors retain their activity and are highly fluorescent, allowing for better visualization of viral infections in living organisms.
Researchers found that higher ventilation rates do not necessarily prevent the spread of airborne diseases in cruise ship cabins. The ideal ventilation strategy involves medium flow rates during occupancy and increased airflow after evacuation to minimize droplet spreading.
A new project will monitor how changing environmental conditions shape viral outbreaks in wild rodent populations to identify hotspots with high potential for spillover into people. The team will use metaviromics and AI to analyze data from wild rodents in the UK and Eastern Uganda.
Mammalian cells consume bacteriophages, killing bacteria and promoting cellular growth and survival. The study suggests that phage particles serve as a nutritionally enriched resource, triggering signaling pathway events that enhance cellular health.
Researchers at Gwangju Institute of Science and Technology (GIST) have developed a deep learning-based biosensing platform called DeepGT, which can accurately quantify nanoscale bioparticles, including viruses. The platform harnesses the advantages of Gires-Tournois biosensors and AI to refine visual artifacts and extract relevant info...
A substantial burden of RSV-associated hospitalizations was found in Canadian pediatric hospitals, especially among infants under six months. The study suggests that preventive strategies for these young infants could lead to decreased RSV disease burden in children.
Scientists at Johns Hopkins Medicine have identified a protein mutation in CD8+ T cells that can make them more effective against cancer and infections. The mutated T cells were found to be more active when stimulated, persist longer, and expand in great numbers during the initial immune response.
A pilot study in Catalonia found that self-sampling is a feasible and acceptable method for diagnosing asymptomatic mpox. The study identified 7 positive cases, including 3 asymptomatic individuals, and estimated the prevalence of infection at 6.19%.
A study of 69,000 adults with hepatitis C virus (HCV) infection found no difference in sustained virologic response across alcohol use categories. This suggests that restricting access to direct-acting antiviral therapy based on alcohol use may create unnecessary barriers for patients. The findings challenge HCV elimination goals.
Researchers at Tokyo University of Science have uncovered a novel mechanism for sorting endocytic cargo, revealing a specific compartment within the trans-Golgi network that determines the fate of cargo. This discovery has implications for understanding basic life processes and diseases caused by disruptions in endocytosis.
Researchers at Cleveland Clinic have developed a potential vaccine candidate against Dabie Bandavirus using nanoparticles, which can deliver antigens at a lower dose with fewer side effects. The vaccine has shown promise in pre-clinical studies and could provide protection to adults over 50, who are most vulnerable to the virus.
A study of 68,000 patients with COVID-19 found that using Paxlovid or Lagevrio significantly reduced mortality and hospitalization rates in those at high risk of progressing to severe COVID-19, regardless of age, race, or virus strain. These medications can be used to treat non-hospitalized patients at high risk of severe disease.
A new CRISPR-based diagnostic tool, MPXV-CRISPR, has been developed in Australia to detect the monkeypox virus with high precision and speed. The tool can detect the virus in clinical samples in just 45 minutes, making it faster than current methods.
New research reveals that the Deformed wing virus DWV-A originated in Asia, contradicting previous European origins. The study found that Varroa mites transmitted the virus to European honey bees after their introduction to Asia, leading to widespread infections and colony declines.
Researchers at George Washington University found that Facebook's core design features undermine its policies aimed at removing Covid-19 vaccine misinformation. The platform's architecture, designed to build communities around shared interests, can inadvertently facilitate the spread of misinformation.
Scientists have found that lung-resident memory B cells, critical for pulmonary immunity, require interferon-gamma produced by T follicular helper cells to differentiate. These long-lived immune cells migrate to the lungs from draining lymph nodes and lie in wait to react quickly to future infections.
Accelerometer sensors can detect sickness behavior in wild boar, allowing for early detection of African Swine Fever. The study found that infected boars were 10-20% less active daily than healthy ones, making this technology a potential tool for disease control and prevention.
Researchers at the University of Missouri have identified a way to improve immunological memory produced by T cells in response to influenza infection, potentially leading to more effective vaccines and treatments. The study found that manipulating a molecular signaling pathway can strengthen and prolong the immune response.
Scientists have identified a molecule that effectively inhibits heparanase activity related to the herpes simplex virus, reducing its spread on human cells. The discovery is an important step towards developing a non-toxic heparanase inhibitor for clinical use.
Babies with more mature gut microbiota at one year old are less likely to develop allergy-related wheeze or asthma. The study, which followed 1074 babies from birth to four years old, found that increased maturity of the gut microbiota was associated with a lower risk of these conditions.
Researchers developed a long-lasting skin coating agent that kills pathogens on the hands, boosting the natural hand barrier. The agent retained high antimicrobial activity even two hours after application, and reduced survival time of coronaviruses and influenza viruses.
Researchers found that hepatitis C treatment improved response to hepatitis B vaccine in individuals who previously didn't respond. The study recommends checking for hepatitis B immune protection and offering vaccination after treatment.
Researchers discovered a subtype of avian flu virus is undergoing mutational changes that could increase its risk of being passed on to humans. The study found the virus can cause severe animal infections and be transmitted through airborne droplets.
University of Louisville researchers have received a five-year, $11.7 million National Institutes of Health grant to investigate the connection between microorganisms and disease. The study will focus on various chronic conditions, including Alzheimer's disease, heart disease, diabetes, periodontitis, and colorectal cancer.
SARS-CoV-2's nucleocapsid protein (N) uses human body temperature to replicate, binding to RNA motifs at specific spatial folds. The study reveals new functions and potential targets for antiviral drugs.
A new study reveals that using big data and machine learning can improve antimicrobial resistance surveillance in livestock production. The research found correlations between environmental variables, microbial communities, and antimicrobial resistance, suggesting multiple routes for improving surveillance.
Researchers found stable antibodies in 800-year-old medieval human teeth that can still recognize viral proteins, allowing them to study the history of infectious human diseases. This discovery expands the field of palaeoproteomics and may enable experts to analyze how human antibody responses developed over time.
Most U.S. infants requiring intensive care for RSV lower respiratory tract infections were young and healthy, born at term. RSV preventive measures targeting all infants are urgently needed to reduce severe illness burden.
A recent study published in Cell Host and Microbe reveals how flaviviruses hijack human cells to promote replication. The discovery of KAT5γ's critical role in viral replication paves the way for designing inhibitory molecules to stop viral replication.
Researchers examine translational studies on peripheral surrogates of tumor burden, including circulating tumor DNA, miRNA, and HPV-specific antibodies, to inform chemotherapy and immunotherapy strategies. These biomarkers show promise as prognostic and predictive markers of response to treatment.
Researchers at La Jolla Institute for Immunology have discovered the inner workings of Ebola virus replication inside host cells, revealing 'viral factories' that form clusters of viral proteins and genomes. These microscopic structures are formed in host cells and play a crucial role in the virus's life cycle.
Yale researchers have created a functional humanized liver in living mice, enabling scientists to study human-specific mechanisms for regulating cholesterol levels and treating chronic liver diseases. The discovery uses progenitor stem cells and mature cells from a human liver to mimic the cellular functions of a healthy human liver.
A vaccination campaign in Cambodia has successfully protected endangered wild cattle from lumpy skin disease (LSD), a highly contagious viral disease. The campaign, launched in collaboration with the Wildlife Conservation Society, has vaccinated over 20,000 domestic cattle and water buffalo to prevent the spread of LSD to wild ruminants.
Researchers found that Epstein-Barr virus induces B cell growth transformation through the activation of the cancer-related gene IMPDH2, leading to uncontrolled proliferation. The study used primary B cells and found that inhibiting IMPDH2 can suppress post-transplant lymphoproliferative disorder (PTLD) development.
A University of Ottawa-led research team has made significant progress in understanding XLP-2, a genetic disorder that affects the immune system. The study reveals two underlying mechanisms: poor expression of Interleukin-6 and compromised T cell survival, which lead to immunodeficiency in patients.
Researchers at NUS and Imperial College London have discovered a new way bacteria share genes, enabling rapid evolution. Lateral cotransduction enables SaPIs to transfer themselves intact with bacterial DNA, making them potent transducing agents.
A study found COVID-19 vaccination coverage was high among healthcare workers and older adults, but low among non-priority recipients. The main reason for wanting to be vaccinated was to prevent self-infection and protect family members.
Researchers investigated the inactivation efficacy of different UV wavelengths against SARS-CoV-2 Omicron variants, finding similar inactivation properties across various wavelengths. The study highlights the potential of far-UVC light as a safe germicidal option for mitigating airborne virus transmission.
Researchers have uncovered a novel mechanism of cell death regulation, shedding light on its significance during conditions such as SARS-CoV infection and skin injury. The study reveals that the cleavage of cFLIP restrains cell death during viral infection and tissue injury, favoring tissue repair.
Scientists at the University of Pittsburgh Center for Vaccine Research have identified a protein responsible for lethal liver disease in mice infected with Rift Valley fever virus. Removing this protein, Lrp1, from the liver prevented viral replication and extended mouse lifespan.
Researchers have developed a computational tool to compare large datasets and predict immune responses to disease, potentially leading to better vaccines. The new algorithm, designed by La Jolla Institute for Immunology scientists, uses machine learning to identify underlying patterns in immune system data.
A new 'fly-to-bedside' resource has been developed to sort through the complexities of SARS-CoV-2 virus-host interactions. Researchers found that nine out of 10 non-structural proteins resulted in wing defects, providing a basis for understanding how viral proteins affect host proteins.
Researchers tracked daily lifestyle diaries and photographs from over 1,000 participants to understand the impact of Covid-19 on physical and mental health. The study found that people with limited resources struggled more during lockdowns, while those with more control and financial stability coped better.
Children with mitochondrial disorders have a weaker and less diverse antibody response to viral infections due to altered B cell function. The study provides insights into how immune cells differ in these patients and how this affects their response to infections.
Researchers found that highly conserved amino acids within MHC-II are crucial for bat influenza A virus infection. The study reveals a broad range of vertebrates, including humans, can be targeted by these viruses due to their ability to bind to MHC-II.
Researchers found that biting midges responsible for transmitting the virus are active on warmest days throughout the winter, contrary to previous theories. The discovery suggests that bluetongue virus transmission is likely ongoing year-round, with potential economic impacts for cattle farming.
A new species of mosquito, Culex modestus, has been discovered in Finland, adding to the country's mosquito species count. The discovery is an important addition to the understanding of mosquitoes and their potential pathogens, with no reported cases of West Nile virus transmission in humans or horses.
A team of researchers led by Dr. William Gilhooly III found that viruses are infecting sulfur bacteria, altering their genetic code and influencing their behavior in oxygen-deficient lakes. This discovery opens up new avenues for understanding the impact of viral infections on bacterial ecosystems.
Researchers at Tel Aviv University have developed an innovative gene therapy that shows promise in treating Dravet syndrome, a severe developmental epilepsy affecting children. The treatment was found to be effective in improving epilepsy, protecting against early death, and enhancing cognitive abilities.
Scientists at Max Delbrück Center have developed a tool to screen drugs that can help treat viral diseases like COVID-19 by analyzing the immune response of lung epithelial cells. The technology uses synthetic locus control region (sLCR) DNA sequences that glow red when triggered, enabling researchers to identify potential treatments.
Patients with GATA2 deficiency have impaired ability to produce immune cells, leading to increased risk of recurrent infections and blood cancers. The study's findings suggest that a zebrafish model may help develop new treatments to slow or reverse the disease.
Researchers at Trudeau Institute and Texas Biomedical Research Institute found that prior dengue infection can worsen Zika virus outcomes during pregnancy. Pregnant marmoset monkeys infected with dengue passed significantly more Zika virus to their fetuses than those without dengue, suggesting a link between the two viruses.
Researchers from Tokyo Medical and Dental University found that apple-shaped obesity is associated with cytokine storm and a higher risk of death in COVID-19 patients. The study suggests that obese patients with excess belly fat may benefit from anti-inflammatory therapies, including IL-6 blockers.
Scientists have found that tiger mosquitoes can transmit the chikungunya virus as effectively at 20°C as at 28°C, raising concerns about its spread in temperate regions. The study reveals different gene expression profiles and microbiome changes in infected mosquitoes, which could lead to increased transmission of the pathogen.