Articles tagged with Virology
The COVID Moonshot Consortium has discovered novel noncovalent and nonpeptidic inhibitors of the SARS-CoV-2 main protease, with promising bioavailability and antiviral activity. The open-science project has yielded a wealth of data on the virus's main protease, paving the way for future therapeutics.
Researchers observed a satellite bacteriophage consistently attaching to a helper bacteriophage at its neck, revealing a new viral relationship. The discovery suggests that this system may be more common than previously thought and could have significant implications for understanding the evolution of viruses.
A study published in The Lancet Regional Health – Europe found that individuals with severe COVID-19 infections experienced the highest prevalence of chronic physical symptoms and had the most persistent symptoms for up to two years after diagnosis. In contrast, those who were never bedridden during their infection presented with a sim...
The Cumming Global Centre for Pandemic Therapeutics is offering global grants of up to $200,000 per annum for three years to develop novel therapeutics for pathogens of pandemic potential. Researchers are invited to submit expressions of interest for Round Two of the Foundation Grants program.
A new study reveals that mosquito eggs can tolerate extended desiccation by changing their metabolic pathway. By rewiring their polyamine and lipid metabolism, the eggs become more resistant to dehydration. This finding provides potential new ways to control the spread of Zika virus.
Researchers launch EU-funded initiative to uncover EBV's role in MS, aiming to find underlying mechanism and develop antiviral treatments. The project seeks to improve disease course or stop progression, with potential for preventive strategies like vaccination.
Researchers have developed novel molecules that target the membrane of viruses, rather than their proteins, offering a promising new approach for treating infectious diseases. The molecules, inspired by natural peptides, disrupt the protective layers of enveloped viruses like Zika and chikungunya, while sparing human cells.
Researchers find that viruses, like bacteriophages, can eavesdrop on bacterial communication and switch from chill mode to kill mode in response to chemical signals. The study reveals tools that control this strategy and demonstrates its abundance, providing new insights into viral behavior.
A Danish population-based nonrandomized intervention study found that a catch-up HPV screening intervention improved cervical cancer prevention in women aged 65 and above. The study showed that these women were more likely to be diagnosed with cervical neoplasia after receiving the test.
Researchers have identified four species of coronaviruses in UK bats, including two novel ones, which are related to COVID-19 and MERS viruses. Regular monitoring of wildlife viruses is crucial for public health preparedness and biodiversity conservation.
Researchers identified four therapeutic monoclonal antibody candidates that neutralized a range of SARS-CoV-2 variants. Prolonged exposure to the virus triggered somatic hypermutations, equipping these antibodies with an extensive binding interface.
A new study published in Science Advances has found that certain antibodies against the Epstein-Barr virus can mistakenly target the brain and spinal cord, causing damage in multiple sclerosis patients. The research reveals a potential link between EBV infection and MS, with implications for personalized therapies.
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.
A study found bats in disrupted ecosystems are more frequently infected with coronaviruses, linked to chronic stress and loss of resources. Land use changes such as agriculture, deforestation, and energy production increase the risk of bat infection.
A study by Osaka Metropolitan University found that users of heated tobacco products had a higher rate of COVID-19 infections and severe cases requiring hospitalization or oxygen. Researchers analyzed data from 30,130 participants and discovered a significant association between heated tobacco product use and increased risk of SARS-CoV...
The CoDe tool enables precise edits to genetic codes, making vaccines safer and more effective. It can also modulate gene expression in small sections, aiding vaccine design and basic research.
Researchers suggest a four-part framework to identify animal viruses that may infect humans, focusing on viruses from repeat offender families and those with known human compatibility. By studying these viruses early, scientists can develop diagnostic tools and treatments, and be better prepared to combat future pandemics.
Researchers identified 7 key symptoms of long COVID, including heart issues and joint pain, in a study of 52,461 patients. The findings could help healthcare providers diagnose and treat the condition more effectively.
Researchers found that measles virus mutations in its fusion protein allow it to infect nerve cells, leading to subacute sclerosing panencephalitis. The team's discovery sheds light on the evolutionary mechanisms of viruses like coronaviruses and herpesviruses.
Researchers developed a translational step forward in treating brain tumors using intraventricular immunovirotherapy, which has shown safety and efficacy in recent clinical trials. This approach uses oncolytic herpes simplex virus type-1 to target high-grade glioma with promising results.
Experts call for a nuanced discussion around gain of function research, highlighting its benefits for human health and its potential to reduce future disease outbreaks. The authors emphasize the need for evidence-based policies that balance safety concerns with the importance of this research in protecting humanity from viral threats.
Researchers have shed new light on viral genome replication machinery, revealing its intricate structure at atomic resolution. The study, published in PNAS, provides essential insights into the assembly, dynamic operation, and potential therapeutic targets of this complex machine.
Researchers found that high levels of mucosal IgA antibodies in the airways protect against SARS-CoV-2 infection for at least eight months, with a 90% lower risk of re-infection. Participants with prior infections generated stronger mucosal immune responses to Omicron breakthrough infections.
A new study found that COVID-19 primarily affected patients with a moderate to critical course, often with comorbidities, whereas many had mild courses despite metastatic melanoma and systemic therapy, recommending continued treatment whenever possible.
A study found that Ezo red foxes and Japanese raccoon dogs infected with HPAI virus had different outcomes due to varying diets. The fox died, while the raccoon dog survived but suffered damage to its eyes. The findings suggest that monitoring programs should be expanded to understand HPAI ecology and identify risk factors.
A team of researchers at the University of Nebraska-Lincoln has discovered that certain microorganisms, such as Halteria, can eat high numbers of chloroviruses, which are known to infect green algae. This finding suggests that virovory, a virus-only diet, can support physiological growth and even population growth in an organism.
Researchers have unveiled the mechanism behind monkeypox virus genome replication using cryo-microscopy. The findings could guide the development of antiviral drugs and may aid in preventing future outbreaks.
Researchers found that lncRNA MVIH is overexpressed in cervical cancer tumors and associated with younger age, lymph node metastasis, tumor invasion depth, and squamous cell type. This suggests its potential as a diagnostic biomarker for cervical cancer.
Researchers develop a new method to track disease-carrying mosquitoes by ingesting harmless DNA particles, providing unique fingerprints of information. This innovative approach has the potential to revolutionize mosquito-borne disease surveillance and tracking, offering insights into mosquito movement and hotspots.
A study found that individuals with blood group Rh(D) have a higher risk of contracting parvovirus, which causes fifth disease. The study screened over 160,000 blood donors in Germany and found all infected persons belonged to the Rh(D) blood group.
A new multivalent mRNA vaccine candidate has shown promising results in mice and ferrets, producing high levels of cross-reactive antibodies and offering protection against various influenza strains. The approach differs from previous universal flu vaccines by including antigens specific to each subtype.
Three circulating omicron subvariants have shown improved resistance to vaccine- and infection-generated neutralizing antibodies. BQ.1 and BQ.1.1 are dominating US infections, while BA.2.75.2 is the best at evading neutralizing antibodies.
Researchers at La Jolla Institute for Immunology have developed a new therapy for Lassa fever using a trio of rare human antibodies that can block viral infection. The therapy, called Arevirumab-3, was tested in non-human primates and proved 100% effective in treating the disease.
Recent advancements in pig-to-human transplants have demonstrated potential as a solution to the dire transplant organ shortage, with over 100,000 people awaiting transplants. Further research is needed to address challenges such as navigating ethical concerns and reducing organ rejection, but trials should continue in humans.
The Independent Task Force Report emphasizes the need for a One Health approach to prevent or respond adequately to the next pandemic. Key findings highlight the importance of 'Smart Surveillance' to identify high-threat pathogens and invest in R&D for innovative diagnostics, antiviral strategies, and therapeutic research.
Researchers developed a highly effective and safe Zika vaccine technology that prevents systemic infection in pregnant mice and stimulates an immunogenic reaction. The vaccine was tested in various mouse models, proving safe and protective against the virus.
Researchers at the University of Maryland Baltimore County have discovered that some viruses can sense their environment and
Researchers at Cleveland Clinic's FRIC found that cytoskeleton disruption is a key signal for the body to respond to viruses. This discovery has potential implications for developing new anti-viral vaccines and treatments.
Researchers developed an AI method to predict how well new COVID-19 variants infect human cells and evade antibodies. The system can analyze a million mutated variants, enabling the development of next-generation antibody therapies and vaccines that provide broader protection against potential future variants.
A US study found that health facilities in metropolitan areas with a high proportion of Black citizens were less likely to administer COVID-19 vaccines, indicating potential vaccine access barriers. The study suggests disparities in vaccine distribution across the country.
Scientists uncover ancient herpes DNA, revealing the virus's prehistoric origins around 5,000 years ago. The discovery suggests a link between the emergence of facial herpes and cultural practices like romantic and sexual kissing in Europe during the Bronze Age.
Researchers used virus-like particles to identify mutations in Omicron that make it more infectious and escape antibodies. The study found that mutations in the nucleocapsid protein are crucial for enhancing spread, highlighting potential new vaccine targets.
Researchers at the Institut Pasteur and CNRS studied SARS-CoV-2 replication in bat cells, finding that viral infection triggers a powerful immune response that prevents the virus from replicating. The study uses real-time imaging techniques to visualize the speed of cell infection and the formation of syncytia.
Researchers at Osaka Metropolitan University identified four proteins in saliva that bind to and inhibit SARS-CoV-2 entry, including neutrophil elastase and histone H2A. These findings may lead to the development of methods to prevent or treat COVID-19 infection.
New research found that coinfection with influenza A virus can significantly suppress SARS-CoV-2 replication in the lung. This effect can persist even after clearance of influenza A virus, suggesting potential factors that restrict SARS-CoV-2 growth.
Researchers report that apratoxin S4, an anticancer drug candidate, can interfere with viral replication in human cells. The compound was effective against multiple viruses, including SARS-CoV-2, influenza A, and Zika virus. Further studies are needed to confirm its potential as a broadly acting antiviral.
A UC San Diego study suggests COVID-19 rebound symptoms after taking Paxlovid are likely caused by insufficient drug exposure, not resistance or impaired immunity. The study found the virus remained sensitive to the drug and no relevant mutations were detected.
Researchers discovered that nano-sized electrostatic atomized water particles damage SARS-CoV-2 viral envelope, protein, and RNA, reducing its infectivity. The particles' reactive oxygen species (ROS) are responsible for this damage, posing a promising alternative disinfection method.
A new study published in mSystems demonstrates that a surface sampling method can detect SARS-CoV-2 RNA on surfaces, improving environmental surveillance in public health labs.
A new analysis reveals that marine RNA viruses predominantly infect protist and fungal hosts, including plankton, and sort into four distinct ecological zones. The study found that RNA viruses have a large influence on the ocean ecosystem, affecting processes like photosynthesis and ocean carbon flux.
A new coronavirus has been identified in Swedish bank voles, with the virus found in 3.4% of voles between 2015 and 2017. Researchers from Uppsala University discovered the 'Grimsö Virus' in red-backed voles caught around Grimsö in Örebro County.
Researchers at Hiroshima University have discovered a new non-radioactive compound that can be used to stain and image viruses in clear detail using TEM. The Preyssler-type phosphotungstate molecule is a good alternative to radioactive uranyl acetate, providing easy-to-use and stable results.
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.
Researchers found that a single mRNA vaccine booster shot can provide the same level of protection as three doses, making it a promising investment for resource-poor countries. The study suggests that this strategy could benefit billions of people worldwide and help combat emerging COVID-19 variants.
Research found that SARS-CoV-2 relies on human transmembrane proteins, especially IFITM2, to replicate efficiently and produce infectious viruses. Antibodies targeting IFITM2 can protect lung cells from infection, suggesting a promising therapeutic approach by targeting host factors instead of viral ones.
A global survey of ocean RNA sequences has identified thousands of previously unknown RNA viruses, doubling the number of orthornavirans. The study reveals new insights into the evolution of RNA viruses, including a 'missing link' in retroelement evolution.
A recent Cornell University study reveals that white-tailed deer can shed and transmit the COVID-19 virus for up to five days following infection. The virus replicates in the deer's respiratory tract, lymphoid tissues, and central nervous system, making them a potential reservoir for the virus in nature.
A study found that double vaccinated individuals generate a potent and broad neutralizing antibody response after a delta breakthrough infection. This response provides protection against current variants of concern, including omicron.
Researchers examined Kappa and Delta variant structures using cryo-EM, finding Delta's spike protein binds stronger with human ACE2 receptor. This explains the rapid global dominance of the Delta variant. The study provides insight into COVID-19 variants' evolution.
The authors argue that lethal mutagenesis, which introduces errors into viral genetic code, could be an important antiviral strategy. However, its long-term effects on human health are unclear and require further study.