Articles tagged with Pathogens
Researchers discover medusavirus undergoes four stages of maturation within host cells, with unique particle structures and DNA-protein exchange mechanisms. The findings provide new insights into giant viruses' biology and behavior.
A team of researchers identified a stem rust resistance gene from wild goat grass species Aegilops sharonensis, which can be cross-bred into wheat for immunity against deadly crop pathogens. The genetic potential of this hardy relative has been largely unexplored and holds promise for reducing the threat of the stem rust disease.
Researchers found that a monkey variant of HIV uses different amino acids to counteract human tetherin than it does in monkeys, suggesting a potential route for SIV to infect humans.
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.
Research suggests that genetic material from E. coli bacteria in farm animals may contribute to the evolution of deadly pandemic strains. The study found that ColV plasmids in pigs, cattle, and chickens can increase the likelihood of antimicrobial resistance and extra-intestinal infections in humans.
A University of California, Davis study found that farms with surrounding natural habitat experience the most benefits from birds, including less crop damage and lower food-safety risks. The presence of natural habitat was the single most important driver differentiating a farm where wild birds brought more benefits than harm.
A new study from the University of Missouri-Columbia recommends pretreating urological patients with antibiotics tailored to their local infection patterns. This approach may reduce postoperative infections in transurethral procedures, which affect up to 10% of patients annually.
Researchers at City University of Hong Kong have developed a novel droplet manipulation method called WRAP, which can transport micro-sized droplets using electromagnets or programmable electromagnetic fields. The method overcomes challenges in traditional magnetic actuation, such as contamination from added magnetic particles.
Researchers developed a mathematical model to predict mosquito breeding ground temperatures, estimating populations and tracking vector-borne diseases. The model revealed that even in winter, certain breeding grounds can support mosquito growth.
Researchers have discovered that certain microbes can prevent Clostridioides difficile infection by consuming nutrients essential for its growth. This new understanding challenges existing approaches to probiotic treatment options, which focus on restoring secondary bile acids.
Researchers highlight the need for disease transmission assessments and mitigation measures to prevent pathogen spread from humans to wild animal populations. The study's recommendations include disease risk analysis to identify gaps in data and minimize the risk of disease transmission.
Researchers developed EDS-HAT, an AI-powered system combining machine learning and whole genome sequencing to detect clusters of similar infections in real-time. The system identified 99 clusters of infections and prevented potential transmissions in 65.7% of cases, saving the hospital $692,500.
A new study found that free-roaming domestic cats are the likely cause of toxoplasmosis in wildlife, with healthy ecosystems providing protection against these pathogens. The researchers suggest limiting cat roaming can reduce the impact of Toxoplasma on wildlife.
A systematic review of 28 studies identified 13 themes related to COVID-19 vaccination status in older, ethnic minority individuals. Factors facilitating access included vaccination reminders from healthcare providers, while misinformation and personal beliefs were barriers to uptake.
Scientists from the University of Tsukuba have created a method to grow conducting polymers with magnetic properties using harmless virus particles as templates. The resulting polymer networks exhibit helical antiferromagnetic behavior, opening doors for applications in biosensors and virus detection.
The COVID-19 pandemic has led to reduced influenza reporting, but vaccination and strengthened surveillance are critical for a possible resurgence. Research highlights the importance of flu vaccination and early testing for non-influenza respiratory viruses.
A study by SWPS University of Social Sciences and Humanities found that people become more sensitive to feelings of disgust when they perceive their lives as being in danger. As a result, they tend to avoid foreigners, which is linked to an evolutionary response known as the behavioral immune system.
Researchers found that asymptomatic patients may not produce significant IgG antibodies, but rather a different kind of antibody count that can indicate disease severity. The study suggests using the ratio of these two counts as a marker to determine if a person has had COVID-19.
A multidisciplinary team of Lehigh University researchers will conduct experiments on thermophoresis in complex fluids for bioseparations at the International Space Station. The team hopes to understand how temperature gradients affect particles and improve virus separation techniques with potential societal impact.
A team of researchers has discovered a new group of coral-infecting microbes called Corallicolida. Despite lacking photosynthetic genes, they express chlorophyll genes and may still play a role in their host cells. The authors propose that Corallicolida could be an ancient parasite that lost its photosynthetic machinery.
Researchers at the University of Central Florida have identified food products that can alter a person's saliva to reduce the transmission potential of airborne pathogens. By adding ingredients like ginger, cornstarch, and xanthan gum to food products, people may be able to make masks more effective or even reduce their need for them.
A recent study explores the plant immune system using chimeric maize leaves with an auto-active R protein. Researchers found that Rp1-D21 triggers a defense response without recognition events, leading to cell death in affected areas but not neighboring cells.
A study by North Carolina State University found that surface waters in eastern North Carolina were more likely to face dual contamination from human and swine waste after Hurricane Florence. The presence of Arcobacter, a pathogen not associated with human or swine fecal markers, was also discovered.
A new approach to modeling COVID-19 spread incorporates real-time data on people's movements, showing promise for optimal lockdown policies. The study suggests a balance between controlling the pandemic and minimizing economic costs can be achieved through mathematical models and Google mobility data.
The new indoor module for Eddy3D software helps designers and architects maximize fresh air flow and minimize stagnant areas. By simulating airflow and identifying virus diffusion patterns, the tool reduces the risk of airborne pathogens in post-COVID offices.
Scientists used next-generation sequencing to study bumblebee health, finding evidence of pesticide exposure, including neonicotinoids, as well as pathogens. The technology allowed for quick detection of diseases and stressors, shedding light on the decline of bumblebee populations.
A new study suggests that the first COVID-19 case arose in China between early October and mid-November 2019, with November 17 being the most likely date of origin. The analysis reveals a more rapid spread than previously confirmed cases imply, with the disease spreading globally by January 2020.
Researchers from the University of Cambridge identified Yersinia Pestis in individual burials, showing that plague victims received individual care despite the outbreak. This contradicts previous assumptions of mass burials and improves our understanding of past pandemics.
Researchers led by Dr. Laura-Isobel McCall use liquid chromatography mass spectrometry and data science tools to understand how pathogens affect different body parts differently
A computer simulation tool called PoPS predicts when and where pests and diseases will attack crops or forests, helping manage strategies and pesticide applications. The tool improves with data feedback from natural resource managers, enabling more accurate predictions of future spread.
Lemon trees showed a lower molecular response to the citrus greening disease pathogen Liberibacter asiaticus compared to orange trees. This may be due to accumulated micronutrients and upregulated protease inhibitors in lemons, which hinder photosynthesis. The study's findings could aid in developing resistant citrus varieties.
The soybean cyst nematode is the most damaging pathogen of soybean in the US and Canada, with recent estimates suggesting it causes $1.5 billion in annual yield losses. SCN was found in over 100 new counties between 2017 and 2020, highlighting the need for continued research and management strategies.
Researchers at Ohio State University developed a new software tool called MagicDNA that can design more complex DNA robots and nanodevices in a fraction of the time. The software allows for 3D design and simulation, enabling fine control over individual component properties and increasing the complexity of overall geometry.
A recent study warns that moving endangered species to new locations can accidentally spread diseases and parasites, putting populations at risk of collapse. The researchers recommend stricter quarantine periods and relocation strategies to mitigate this risk.
A study found that infected dogs emit an odor attractive to female sand flies, which transmit Leishmania infantum, the parasite causing visceral leishmaniasis. The researchers suggest parasites manipulate their host's scent to improve transmission opportunities.
Researchers found that wolf social groups affect disease transmission within and between groups. The models account for individual death rates, group split or combination, and Allee effects, showing pathogens reduce population size mainly through reduced group numbers.
A novel, inexpensive chlorine dispensing device has been developed to improve tap water safety in regions with limited financial resources and infrastructure. The device, which requires no electricity or moving parts, releases measured quantities of chlorine into the water before it exits the tap.
The Asian tiger mosquito Aedes albopictus has been shown to transmit the Zika virus and trigger large outbreaks in a simulated environment. However, experimental studies suggest that the mosquito's infection rate is low, making it unlikely to cause major Zika virus epidemics.
The study developed statistical models using socioeconomic data to predict antimicrobial resistance prevalence. The models showed high predictive accuracy for six priority pathogens and expanded the global map to include 99% of the worldwide population in low- and middle-income countries.
A study published in Frontiers in Marine Science reveals that fan mussel larvae can disperse from unaffected populations, potentially aiding the recovery of an endangered species. The larvae can travel hundreds of kilometers thanks to ocean currents and play a crucial role in the species' survival.
Scientists found that even a short dry period of 30 minutes reduced spore germination to almost zero, preventing disease on spinach. The study also revealed that standing water on leaves is essential for the spores to cause disease, enabling growers to design better management strategies.
A study analyzing genomic sequences from historical plague victims suggests that a wildlife reservoir in Eurasia, near Europe's edge, may have seeded epidemics. The research also reveals a common strain responsible for the 1722 Great Plague of Marseille and separate introductions to Scandinavia and the Caucasus region.
A new interactive tool, ClubrootTracker, has been developed to help farmers locate and manage clubroot-infected areas. The tool groups the distribution of clubroot disease in one place, making it easier for farmers, researchers, and industry representatives to share information and plan a clubroot-free farm.
A unique strain of Shiga-toxin E. coli (STEC) has been identified through genomic analysis, revealing its genetic makeup and potential for severe disease. The study's findings may contribute to the development of vaccines against emerging STEC pathogens.
A study published in PNAS examines how travel duration affects disease transmission in Namibia from 2010 to 2014. The researchers found that longer trips were associated with increased disease transmission in low-density areas.
Scientists from CNRS and University of Nantes have developed a mathematical model to predict the risk of epidemic emergence based on seasonal factors. The 'winter is coming' effect suggests that pathogens introduced before unfavorable winter periods are less likely to cause large epidemics.
A new portable DNA detection method can identify tree pests and pathogens like the Asian gypsy moth and sudden oak death pathogen in under two hours. The device uses PCR testing to analyze tiny amounts of DNA and has been tested on multiple destructive invasive species.
A study by the University of Guam found that cycad stem cuttings require wound sealants to survive and propagate. The researchers discovered that petroleum jelly, lanolin paste, honeycomb wax, and even modelling clay can effectively cover wounds and retain hydration.
Researchers discovered a protein called Pdap1 that supports B cells in producing effective antibodies while protecting them from cell death. The protein helps B cells cope with stress and promotes antibody gene diversification, ensuring a strong humoral immune response.
The study identifies inadequate funding, limited guidance, and institutional capacity issues as significant barriers to improved tick monitoring and control. Many existing programs rely on county or state funding, which can lead to program instability over time.
A new analysis approach helps identify when and where to conduct food safety inspections, reducing waste and lost sales. The researchers found that food recalls are delayed by 1-2 months, peaking from mid-August through mid-September.
New study reveals deep connection between Upper Paleolithic Siberians and First Americans, dating back to the Upper Paleolithic period. The discovery sheds light on future studies about Native American population history and suggests that the ancestry of Native Americans was more widely distributed than previously assumed.
A new Cornell University study found that 65% of bee species and 75% of flower species carried pathogens, with diseases transmitted between bees and flowers. In simplified landscapes with more farmland, the dominant bumblebee species spread pathogens across many more flowers, reducing individual bee exposure to new pathogens.
A new study by UMass Amherst and NC State biologists found that flower strips benefit common Eastern bumblebees despite some plants increasing pathogen infection rates. The researchers created three conditions with canola plants and different types of flower strips, showing that bees reproduce more with flower strips than without.
Genomic analysis uncovers lineages specializing in cattle colonization; intensification of agriculture led to adaptation of generalist lineages, potentially creating zoonotic pathogens.
An interdisciplinary study of three African skeletons found in Mexico City sheds light on the lives of first-generation enslaved Africans. The analysis reveals evidence of forced migration, physical trauma, and the introduction of infectious diseases from Sub-Saharan Africa.
Researchers found a parasite from opossums infecting sea otters along the West Coast, with infected otters in British Columbia's northern Vancouver Island. The study suggests pathogens can travel long distances via water runoff and prey species like clams.
Researchers discovered that pre-immunization with common childhood vaccines can boost anti-tumor efficacy when combined with a hybrid viral platform called PeptiCRAd.
A rapid DNA extraction and diagnostic method has been developed, allowing for same-day management decisions in insect-transmitted plant diseases. This technique reduced the identification time from two weeks to less than one hour.
Researchers found that the nervous system controls a worm's skin-like barrier against bacterial infections, challenging traditional views on innate defense. The discovery may have implications for human health and longevity by regulating collagen production, a key protein in maintaining tissue structure.