Articles tagged with Infectious Diseases
Immunosequencing of T cells combined with machine learning techniques reveals that participants with higher numbers of pre-existing memory CD4 T cells develop immunity more quickly and produce more antibodies following vaccination. This study has significant implications for immunity and vaccine development efforts.
Researchers at University of Washington developed a fast, cheap test for COVID-19 that combines speed of antigen tests with accuracy of PCR tests. The Harmony COVID-19 test detects genetic material from SARS-CoV-2 virus with 97% accuracy and provides results in under 20 minutes.
The four-year programme will investigate the chemical signatures that trigger immunity in fungal infections, which kill an estimated 1.6 million people worldwide annually. By understanding these signatures and how fungi disguise them, researchers hope to uncover the origins of antifungal immunity.
A study published in PLOS ONE found that a mange outbreak in San Guillermo National Park, Argentina decimated the wild vicuña and guanaco populations, with nearly three-quarters of the animals lost between 2017-18. The authors suggest domestic llamas introduced to the site may have triggered the outbreak.
Researchers have identified several factors that can predict the development of long COVID, including the presence of certain autoantibodies, pre-existing Type 2 diabetes, and low cortisol levels. The study found that administering antivirals early in the disease course may also prevent some long COVID symptoms.
Researchers created a novel molecular diagnostic platform that can detect COVID-19 genes after only 8 cycles of amplification, significantly reducing the time required for diagnosis. The new SERS-PCR platform uses gold nanoparticles to produce high-sensitivity signals, providing an important tool in the fight against the pandemic.
A new study has found that children in sub-Saharan Africa who are hospitalized with COVID-19 are dying at a rate far greater than children in the US and Europe. Children under 1 year old had nearly five times the risk of death compared to adolescents aged 15-19 years.
Researchers at Karolinska Institutet found that memory T cells formed after previous infection or mRNA vaccination can still recognize the omicron variant, suggesting protection against severe disease. The study also suggests booster immunization may provide benefits beyond neutralizing antibodies.
Researchers at Nagoya City University developed a novel approach for surface disinfection using harmless visible light, inactivating bacteria and viruses. The study's findings suggest that photothermal effects caused by pulsed laser irradiation can instantly destroy pathogenic microorganisms.
A University of South Australia study suggests that nature-based citizen science projects can alleviate stress and isolation, while improving mental, emotional, and physical health benefits. By engaging with natural environments, individuals can experience lower stress levels, improve their wellbeing, and feel connected to a community.
A new framework evaluates medicines' impact on global health, calculating the impact of drugs used to treat diseases like TB, HIV/AIDS, malaria, and NTDs. The Global Health Impact Index model saves about 62 million disability-adjusted life-years, equivalent to saving almost a year of life for 1% of the world's population.
Scientists have grown rousette bat 'organoids' that reproduce intestines in vitro, providing a new model for studying virus-bat relationships. The organoids were found to be susceptible to certain viruses but not others, offering insights into why bats can host multiple pathogens without getting sick.
A UTEP research team found SARS-CoV-2 neutralizing antibodies in over a third of Texas deer blood samples, indicating widespread infection among white-tailed deer. The study suggests that deer should not be neglected as a possible source of human infection.
Researchers at UNICAMP discovered that total parasite biomass is a better predictor of complications in patients with P. vivax malaria than parasitemia. The study highlights the importance of parasite biomass in the bone marrow and spleen, which play a major role in vivax malaria complications.
The University of Ottawa's CoVaRR-Net has received a $9 million grant extension to continue its rapid research on COVID variants, including the Omicron variant. This renewed funding will allow researchers to accelerate their work and keep policymakers informed of their latest findings.
Researchers identified 'pre-resistance' signs in bacteria, predicting future resistance to antibiotics. This discovery allows doctors to select the best treatments for bacterial infections and paves the way for personalized genomic therapy.
Researchers from Duke-NUS Medical School found that Zika virus infection disrupts the glucose metabolism pathway in infected foetuses, leading to birth defects and death. A potential supplement, pyruvic acid, may protect foetuses from these impacts.
Researchers developed a high-throughput platform to screen for new class of coronavirus antiviral compounds, targeting the macrodomain protein. The platform identified existing drugs that block macrodomain activity, including dasatinib, which shows promise as a potential treatment for COVID-19 and other coronaviruses.
A clinical trial has revealed that COVID-19 patients on ventilators have less surfactant in their lungs due to the virus. The researchers suggest that giving extra surfactant for a longer period could help save lives by supporting breathing and allowing lung cells to repair after the infection passes.
Researchers found fecal transplants increase IL-25, reducing tissue inflammation and boosting immune system response to C. difficile infections. The transplants also promote beneficial microbial diversity, helping patients heal from life-threatening diarrhea.
Researchers found that transient depletion of regulatory T cells induces dendritic cell maturation and generates adaptive immune responses against emerging SARS-CoV-2 antigens. This discovery may improve current vaccine strategies by eliminating the need for adjuvants.
Researchers found that a combination of natural infection and vaccination produces maximally potent antibodies against COVID-19. The study suggests that repeated exposures to the spike protein can improve the immune system's ability to produce high-quality antibodies against variants.
A recent study suggests that severe COVID-19 may cause long-term damage to the testes, leading to reduced sperm count and quality. The virus's interaction with testicular cells and potential effects on fertility are being explored through an experimental framework.
A study of HIV-positive black and Latino men found that methamphetamine use combined with intimate partner violence boosts inflammatory and antiviral genes, leading to immune system exhaustion. This combination may increase the risk of developing cardiovascular disease and other disorders.
Researchers have developed a comprehensive Lyme disease dashboard to define hotspots and map the disease across the US and Canada. The dashboard provides valuable insights for public health awareness and research collaboration.
A recent study found that 19.9% of trans feminine individuals and 2.56% of trans masculine individuals were HIV positive, highlighting the need for targeted prevention efforts. The researchers called for increased focus on this population's unique needs.
A recent study estimates that COVID-19 vaccination prevented almost 470,000 deaths among people aged 60 years and older across Europe. The authors found that early implementation of vaccination was associated with the largest reduction in expected deaths.
A cohort study of 165 patients with hepatitis C-related hepatocellular carcinoma found that treating the virus with direct-acting antivirals reduces tumor progression and metastasis. The study showed a 72% reduction in tumor progression and an 88% reduction in risk of death from HCC.
Researchers from Osaka University found that over half of intensive care workers experienced moral distress during the pandemic due to limited communication with patients and families. Virtual communication and psychological support were identified as potential solutions to prevent burnout and ensure proper medical care.
Previous antibody responses to harmless coronaviruses contribute to SARS-CoV-2 immunity, reducing infection severity and hospitalization rates. Researchers found that people with strong immune responses to other human coronaviruses have some protection against SARS-CoV-2 infection.
Researchers have developed a new strategy to combat the tick-borne Crimean-Congo hemorrhagic fever (CCHF) virus by reconstructing its structure and identifying neutralizing antibodies. The study, published in Science, offers insights for developing therapeutics and vaccines against the virus.
The European Union and European Economic Area saw a significant decline in antibiotic consumption in 2020, with a 18% decrease compared to 2019. This decline was largely attributed to the COVID-19 pandemic, which led to reduced primary care consultations for mild infections.
Researchers have identified compounds that interfere with fungal enzymes required for fatty acid synthesis, potentially overcoming resistance to current treatments. These compounds show promise as antifungal agents, effective even against drug-resistant strains of fungi.
Scientists sequenced Plasmodium falciparum genomes to understand malaria parasite populations and track drug resistance biomarkers. The study identified population-specific SNPs that can be used to determine transmission routes and monitor drug resistance.
Researchers at East Carolina University have discovered a new way to detect SARS-CoV-2 by testing air passing through building ventilation systems. The method revealed the presence of the virus in air samples with high accuracy, potentially leading to earlier detection and reduced transmission.
Researchers have identified specific bacterial interactions in disease-resistant children that protect against chronic middle ear infections. This discovery could lead to new treatments and preventative measures for Indigenous communities, which are disproportionately affected by the condition.
Researchers have developed a database of parasite-host interactions among ancient ocean animals, shedding light on the evolution of biodiversity and the impact of parasitism on ecosystems. The study suggests that parasites can positively stabilize coastal ecosystems, making them more stable despite individual harm to hosts.
Plant pathologists have developed a set of Nursery Phytophthora Best Management Practices to eradicate the harmful organisms from nursery stock. Through testing and accreditation programs, nurseries that comply with the guidelines have shown no detectable Phytophthora infection in their stock, enabling habitat restoration plantings.
Scientists have engineered enzymes to manufacture molnupiravir, resulting in a shorter and higher-yielding synthesis. The new method reduces the risk of hospitalization and death from COVID-19 for newly diagnosed patients, showing promise as an antiviral treatment.
A new report highlights the alarming global impact of Group B streptococcus, which can lead to up to 150,000 infant deaths annually. Maternal vaccination is seen as a cost-effective solution to reduce this toll, with significant health benefits in all regions.
Researchers aim to predict and contain the spread of SCTLD by tracking coral immune responses. The study will examine which factors contribute to a successful immune response, where corals can recover and survive.
A recent study found that adding tamoxifen to standard antifungal treatment did not speed up the clearance of fungal infection from spinal fluid in patients with meningitis. The study also showed increased heart toxicity in the tamoxifen group, highlighting the need for new anti-cryptococcal drugs.
Researchers at Texas A&M University have developed a wearable, self-sustaining fever detector that uses thermal energy harvesting to power its electronic device. The device can generate an unprecedented 87 millivolts per degree Celsius, making it large enough to operate typical wearable electronics.
A new study found that COVID-19 can trigger severe psychiatric symptoms in adolescents, with anti-neural antibodies playing a potential role. Two patients with mild/asymptomatic COVID developed suicidal thoughts and paranoid fears, while another patient without prior psychiatric history recovered fully after treatment.
The global illegal wildlife trade has a substantial impact on biodiversity loss, human health, and ecosystems. The trade results in estimated costs of $162.7 billion annually and contributes to the extinction of native species.
Researchers found that Pseudomonas aeruginosa populations in CF patients' sinuses vary widely, with evolution following two stages: pathoadaptive community formation and fragmentation. This discovery may inform new therapeutic approaches by focusing on strongest evolutionary pressures.
Infection with measles virus triggers the activation of both RNA and DNA virus immune responses. The virus affects mitochondrial growth and division, causing their fusion and release of mitochondrial DNA into the cytoplasm. This leads to the activation of the cGAS immune response, which is also triggered by DNA viruses.
A team of scientists from the University of Pittsburgh and National Cancer Institute discovered why HIV is rarely the direct cause of cancer. The research found that it requires a specific series of events involving changes in HIV and additional mutations in human genes, resulting in T cell lymphomas. However, the occurrence is rare, a...
Researchers at KU Leuven developed an ultrapotent inhibitor of the dengue virus, effective against all known variants. The antiviral molecule is also suitable for prevention purposes and has shown promising results in mouse tests, with a low dose being extremely effective.
A pre-clinical study by University of Illinois Chicago researchers shows that a drug targeting specific immune pathways can prevent lung damage and death in mice infected with the SARS-CoV-2 virus. The study suggests targeted treatments may be more suitable for COVID-19 patients than broad immune suppressants.
Dr. Gack's research focuses on identifying broad-spectrum antiviral drug targets and has implications for developing effective treatments against COVID-19 and other viral threats. The $5.6 million NIH grant will support her investigation into targeting human enzymes essential for virus replication.
A clinical trial found that convalescent plasma did not improve survival rates in most critically ill COVID-19 patients. However, immunocompromised patients showed a slight improvement with the treatment. The researchers speculate that too few high-quality antibodies and a runaway inflammatory immune response may be to blame.
A new study by University of Cambridge researchers proposes abandoning the R rate for tracking pandemics in favor of nowcasts, which forecast daily new cases and deaths based on growth rates. The Harvey-Kattuman model has already proved accurate and effective in predicting COVID-19 waves and spikes worldwide.
Researchers found that both Gram-positive and Gram-negative bacteria induce the resorption of alveolar bone, a key component of periodontal tissue. The study suggests that positive and negative bacteria are responsible for periodontitis symptoms.
A new DNA sensor can detect both the presence and infectivity of viruses in minutes, providing a significant improvement over current methods that only detect genetic material. This breakthrough could aid in tracking and containing viral outbreaks, as well as understanding mechanisms of infection.
A new study reveals a strong connection between infection rates and strains of authoritarianism in public attitudes and politics. The research found that the more infectious US cities and states had more authoritarian-leaning citizens, with correlations between higher disease rates and conservative voting patterns.
Researchers at the University of Illinois found that antibodies from people infected with the original COVID-19 strain do not effectively bind to newer variants. This has implications for vaccine efficacy and the design of possible boosters.
Researchers at Kanazawa University have identified a new vaccine platform that targets liver cells to induce anti-malaria immunity. The AAV8 vaccine platform was found to be more effective in eliciting a T cell-mediated response in the liver, providing sterile protection against malaria in a murine model.
Scientists have developed a new therapy that combines bacteriophages with antibiotics to treat antibiotic-resistant infections, specifically targeting Mycobacterium abscessus. The treatment, using the bacteriophage 'Muddy', showed significant improvement in survival rates and severity of infections when paired with rifabutin, demonstra...
A study published in The Lancet Global Health found that nearly one-fifth of young people with tuberculosis (10-24 years old) in Brazil experienced adverse treatment outcomes. Factors associated with these outcomes included poverty, HIV, homelessness, and drug use, highlighting the need for greater attention to this age group in tuberc...