Articles tagged with Viral Infections
Scientists at VIB and Ghent University have developed a promising vaccination strategy to counteract Respiratory Syncytial Virus (RSV) infections. The new vaccine candidate uses a novel approach, stimulating macrophages to selectively eliminate infected cells, providing protection in lab animals.
A recent study reveals that two viruses have led to the collapse of three amphibian species and impacted six others in northern Spain, causing severe disease and mass mortality.
Researchers have found that emerging viruses are causing severe disease and mass deaths in many amphibian species, including frogs and salamanders. The viruses, part of the Ranavirus group, are being spread through human activities and are having a devastating impact on entire host communities.
A new study published in Clinical Infectious Diseases reveals that up to four out of ten children in Burkina Faso are genetically resistant to rotavirus strains found in existing vaccines. Children who cannot express the Lewis molecule, a sugar molecule needed as a receptor for the virus, do not become infected and therefore do not rec...
The Scripps Research Institute team is investigating the deadly Lassa fever virus with a $6.6 million NIH grant. The five-year study aims to understand how the immune system fights off the virus and develops new treatments for the disease. Researchers will analyze cells, chemicals, and genetics of patients to uncover key findings.
A study by Columbia University's Mailman School of Public Health found that NYC rats harbor bacterial and viral pathogens, including Seoul hantavirus and rat hepaciviruses similar to human hepatitis C. The researchers identified 15 pathogens in 133 trapped rats, highlighting the importance of monitoring the city's rodent population.
A non-invasive oral capsule approach has been shown to be as effective as colonoscopy or nasogastric tube delivery in eliminating recurrent diarrhea caused by C. difficile infection. The study found a 90% success rate for the oral capsule method, with most participants experiencing complete symptom resolution after a single treatment.
The study found increased infection rates for various types of infections in US nursing homes, including pneumonia, urinary tract infections, and viral hepatitis. Simple interventions such as proper hand hygiene, reducing catheter use, and routine screening for MDROs can help reduce the risk of infection.
A study by Johns Hopkins Medicine found that tobacco use is associated with an increased risk of oral human papillomavirus type 16 (HPV16) infection. The researchers discovered that people who recently used or were exposed to tobacco had a higher likelihood of having oral HPV16 DNA, independent of their sexual behavior.
A plant microRNA, MIR2911, has been discovered to directly target influenza A viruses, including H1N1, H5N1, and H7N9. Drinking honeysuckle soup can prevent IAV infection and reduce mortality rates in mice. The study provides a novel therapeutic strategy for IAV infection prevention and treatment.
A new study analyzing the first outbreak of Ebola in 1976 found that reducing community transmission and changing behavior were crucial to controlling the outbreak. The study suggests that if communities had not changed their behavior, the outbreak could have been much larger, with potentially devastating consequences.
A recent study from Tel Aviv University suggests that prenatal exposure to viruses may cause type 1 diabetes and other autoimmune diseases in children. The researchers found a link between winter epidemics and increased levels of damaging antibodies in cord blood, indicating autoimmune damage to islet cells during gestation.
A recent study by Moffitt Cancer Center researchers found that men who consume more alcohol have a significantly higher risk of human papillomavirus (HPV) infection. The study analyzed over 1,300 men and discovered that those who drank the most alcohol had an increased risk of HPV independent of their number of sexual partners.
Research found a significant association between high alcohol intake and heightened HPV infection risk in men, even after adjusting for other risk factors. The study suggests that moderate alcohol consumption may be crucial to reducing this risk, alongside safe sex practices and smoking cessation.
Researchers analyzed bat influenza viruses and found they could not infect human cells or other animals, contradicting initial concerns. The study suggests these viruses have limited genetic compatibility with Type A or Type B influenza viruses, making reassortment unlikely.
A new theory proposes that blackflies infected with Onchocerca volvulus microfilariae transmit a secondary pathogen causing NS. The study suggests that population displacement and insecticide control measures may limit the spread of NS.
Researchers develop genetic 'instruction set' that creates broadly neutralizing antibodies to target hepatitis C virus. In mice, the treatment prevented infection and eradicated existing infections, offering potential for affordable treatment.
Research shows that influenza A potentiates pneumococcal co-infection by enhancing the bacterium's ability to colonize the nasopharynx and infect the middle ear. This interaction leads to increased inflammatory responses, allowing pneumococci to flourish in the host environment.
A study published in JAMA Pediatrics found a strong link between cytomegalovirus (CMV) and maternal breast milk in very-low-birth-weight (VLBW) infants. CMV was detected in 76% of mothers, with 27 out of 28 postnatal infections occurring among infants fed CMV-positive breast milk.
A new study finds that small, fast-living mammals and high population densities can increase the risk of tick-borne illnesses like Lyme disease and anaplasmosis. Research suggests that animals with fast life history features and large populations are more effective at transmitting pathogens to ticks.
Researchers at the University of Warwick found that a mathematical model replicating Ebola outbreaks can no longer predict its scale. The current outbreak is 'out of all proportion' and defies previous patterns.
High levels of T-bet in CD8+ T cells are prevalent in individuals who successfully fight off hepatitis infections. The protein is linked to the production of antiviral molecules like interferon and the ability of CD8+ T cells to multiply in response to the virus.
A team of scientists at UVA has obtained the crystal structure of a key Ebola virus protein, revealing a novel tertiary fold that could lead to insights into viral assembly and antiviral drug design. The study's results may provide a potential target for the development of new treatments for Ebola hemorrhagic fever.
Researchers uncover new insights into viral infections influencing SUP05 ecology and metabolic potential in oxygen-minimum zones. The study reveals viruses play a crucial role in marine microbial ecology below sunlit surface waters, with implications for ocean carbon cycling.
Researchers discovered that the bluetongue virus overwinters in female midges infected during previous season, allowing it to survive colder temperatures. The findings have significant implications for predicting and controlling the disease's spread.
The current Ebola outbreak in West Africa requires a rapid global response to contain the virus, which has already killed nearly 2000 people and may infect up to 20,000. Experts warn that fear, mistrust, and lack of resources are exacerbating the situation.
Researchers found that viruses can contaminate surfaces within 2-4 hours, spreading to 40-60% of workers and visitors. Disinfecting wipes with quaternary ammonium compounds (QUATS) reduced virus spread by 80-99% when used in conjunction with hand hygiene.
Researchers found that a flu virus can inflame nasal tissue and increase bacterial growth, leading to middle ear infections. The study suggests that the flu virus modifies the immune system's response to certain bacteria, enabling them to infect the middle ear.
Experts warn that dengue vaccines could lead to short-term spikes in disease incidence, but long-term vaccination will reduce overall infections. The issue arises from the natural fluctuations in mosquito populations and the imperfect vaccine protection.
A blend of three monoclonal antibodies has been shown to protect monkeys against a lethal dose of Ebola virus for up to 5 days after infection. This treatment, ZMAPP, was found to be effective in a study published in Nature.
Respiratory infection control measures for Ebola patients are unnecessary and may contribute to public panic, according to a new letter published in The Lancet. Excessive precautions could reinforce the view that some lives are more valuable than others, exacerbating the spread of infection.
Researchers sequenced over 99 Ebola virus genomes from 78 patients in Sierra Leone, finding more than 300 genetic changes that make the 2014 Ebola virus distinct from previous outbreaks. The data provides insights into the outbreak's origin, transmission, and potential targets for diagnostics, vaccines, and therapies.
A new Ebola treatment has shown promise against the Sudan strain of the virus in mice, using synthetic antibodies designed to target a key molecule on the surface of the virus. The treatment is not effective against the Zaire ebolavirus, which is currently devastating West Africa.
A clinical trial has shown that the infection caused by RSV can be effectively reduced after it has started, paving the way for a new treatment. The study found that the oral drug GS-5806 reduced viral load and improved symptoms in healthy adult volunteers infected with RSV.
The rabies virus manipulates axonal transport to reach the brain quickly, with a speed of 8 cm/day, 40% faster than its regular partner NGF.
The 2009 H1N1 outbreak at Washington State University provided valuable data for researchers to study the rapid spread of the virus. A computer model revealed that only a few initial infected individuals sparked the outbreak, with a high transmissibility rate among close-knit student communities.
Researchers at UTMB have developed a treatment effective against the lethal Marburg virus, which has a mortality rate of up to 90%. The treatment protected nonhuman primates from the virus when started three days after infection, showing promise for post-exposure treatment.
Two American missionaries who contracted Ebola virus in West Africa deserve special treatment for their selfless act of caring for infected patients. The author argues that limiting experimental treatment to these two patients is necessary due to the ethical concerns of exploiting vulnerable individuals during a public health outbreak.
The research reveals the viral capsid structure, showing similarities to other viruses, and identifies potential binding sites for modification. The findings may lead to new information on host-virus interactions and the development of custom-made viruses to target parasitic or pathogenic worms.
Researchers discovered that club cells, which normally protect against inhaled microbes, contribute to prolonged inflammation during flu infection. Targeting these cells may help shorten flu symptoms by reducing lung damage.
The article highlights the importance of recognizing Ebola virus infection and isolating patients in hospitals worldwide. Despite concerns about transmission, experts argue that developed countries' effective hospital infection control practices minimize the risk of further spread.
A new experimental chikungunya vaccine performed well in an early clinical trial, eliciting neutralizing antibodies in all participants and providing durable protection for at least 11 months. The vaccine, a virus-like particle (VLP) vaccine, was delivered without an adjuvant and prompted a robust immune response.
A new virus-like particle vaccine has shown promising results in a human trial, generating antibodies that provide long-term protection against chikungunya. The vaccine, composed of non-infectious VLP particles, was well-tolerated and effective across different doses.
Researchers have identified a 52-character biological signal specific to bacterial infection in newborns' DNA, enabling early detection and diagnosis. This breakthrough could lead to the development of a single-drop blood test, limiting antibiotic overuse and tackling drug resistance.
The Ebola virus outbreak in West Africa has claimed over 1,000 lives, with healthcare professionals facing new challenges in capital cities and Nigeria. Dr. Fauci emphasizes the need for sound public health practices, community engagement, and international assistance to defeat the epidemic.
Researchers have discovered how Ebola blocks and disables the body's natural immune response. The protein VP24 disrupts a crucial early step in the virus's path to causing deadly disease. Understanding this mechanism could lead to new treatments for the deadly virus.
A study published in Cell Host & Microbe reveals how the Ebola virus blocks the body's first line of defense against infection. By targeting a specific protein called eVP24, the virus cripples the immune system's ability to respond effectively, allowing it to mass-produce itself and trigger a deadly response.
Researchers at MIT have developed a new technique for studying the hepatitis B virus lifecycle, allowing them to investigate immune responses and drug treatments. The model could help find a cure for the disease by understanding how the virus interacts with liver cells.
The American College of Physicians recommends a full-night polysomnography test for diagnosing obstructive sleep apnea. A computer model predicts that new therapies will make chronic hepatitis C a rare disease by 2036. Physical therapy and corticosteroid injections provide equal relief from shoulder pain and disability, with MPT patien...
Researchers found that childhood coxsackie virus infection depletes cardiac stem cells, impairing the heart's ability to tolerate stress and increasing the risk of heart disease later in life. The study suggests a potential link between early viral infections and long-term cardiovascular health.
Researchers found 101 non-antibiotic drugs with potential to prevent growth of certain bacterial pathogens, including those causing Legionnaires' disease and brucellosis. These drugs interfere with host cell functions to stall intracellular bacterial infections.
A global prevalence study reveals that HCV genotype 1 accounts for over 46% of all cases, followed by genotypes 3 and 2. The study emphasizes the importance of understanding viral genotype to develop new treatments for HCV.
Two new pill-only antiviral drug regimens have shown promise in treating the most difficult-to-cure form of hepatitis C, with high cure rates and minimal side effects. The treatments offer a more effective, safer, and shorter option for patients with cirrhosis or those who have failed existing therapies.
A new drug, AL-8176, has been shown to safely reduce RSV viral load and clinical illness in healthy adult volunteers. The Phase 2 challenge study achieved primary and secondary endpoints of lower viral load and improvements in symptom scores.
Researchers have identified six potential therapeutics for H7N9 influenza by targeting the immune response rather than the virus. The study found that viruses causing severe illness trigger different gene expression signatures compared to milder infections.
A new study determines glycosylation and pH-dependent conformational changes of virus receptor SCARB2 as crucial for EV71 attachment and entry. Researchers found that SCARB2 opens a lipid-transfer tunnel to trigger viral uncoating at acidic conditions, releasing the viral genome into host cells.
Researchers have uncovered how the NF-κB protein complex is activated, a pivotal step in developing cancer, viral infection and autoimmune diseases. The discovery reveals that two additional events are necessary to switch on NF-κB, paving the way for new drug targets.
Researchers found that prior colonization by Streptococcus pneumoniae protected mice from severe disease and pneumonia. The protective effect was linked to the bacterial virulence factor pneumolysin, which reduced inflammation in the lungs.
Researchers found that Wolbachia-infected mosquitoes are more likely to transmit West Nile virus, despite initial expectations that it would block infection. The study suggests that releasing Wolbachia-infected mosquitoes into the wild may increase the risk of West Nile virus transmission.
A new dengue vaccine candidate, CYD-TDV, has shown moderate protection of 56% against the disease in a phase 3 clinical trial. The vaccine demonstrated high efficacy against three out of four dengue viruses and reduced severe disease and hospitalizations by more than half.