Articles tagged with Pathogens
Researchers mapped the frequencies used by Staphylococcus bacteria to communicate, identifying a signal from another species as potent against MRSA. This alternative technique weakens bacterial ability to coordinate attacks on hosts without killing them.
A new study has mapped the history of infectious diseases across millennia, offering insights into how human-animal interactions transformed our health landscape. The research analyzed ancient DNA from over 1,300 prehistoric individuals, revealing that zoonotic diseases became more widespread around 5,000 years ago.
Researchers create map of T cell responses to Chikungunya virus, shedding light on chronic disease triggers. They found that people with chronic disease have T cells targeting the same viral epitopes as those who cleared the virus.
Researchers developed a compact diagnostic platform that can evaluate antibody protection against COVID-19 using only a single microliter of fingertip blood. The Tip Optofluidic Immunoassay (TOI) system delivers comprehensive immune profiles in just 40 minutes, enabling rapid and accurate assessment of individual immune protection.
Researchers have discovered that a bacterial probiotic helps slow the spread of stony coral tissue loss disease (SCTLD) in already infected wild corals in Florida. Applying the probiotic treatment across entire coral colonies helped prevent tissue loss, providing a more lasting protection than traditional antibiotics.
Researchers found that Common Lime tree infections reduced water use and stem growth but still maintained cooling benefits. The study highlights the complexity of balancing disease control with ecosystem services.
A new study found that heatwaves can increase disease burden by up to 13 times, driven by complex interactions between temperature attributes and baseline temperatures. This knowledge is crucial for predicting the impact of heatwaves on disease spread and highlights the need for more detailed models.
Researchers have identified a novel inhibitor that can target and turn off a specific efflux pump in Mycobacterium tuberculosis, a key mechanism of antibiotic resistance. This breakthrough has the potential to improve the effectiveness of antibiotics and prevent resistance from emerging.
A new study finds that bats are a reservoir for morbilliviruses, including the human measles virus, and can transmit them to other mammalian species, such as monkeys. The research suggests that these viruses have crossed species boundaries multiple times, posing a significant threat to human health and livestock.
Researchers found cotton leafroll dwarf virus (CLRDV) infecting plants in southern US states as early as 2006, contradicting the assumption that it emerged more recently. The study used modern data-mining tools to uncover hidden threats and highlights the importance of maintaining accessible databases for disease surveillance.
The Zika virus employs its host cells' autophagy mechanism to suppress proteins that would trigger an antiviral response, allowing for sustained infection. This unique strategy involves the manipulation of three proteins on the viral membrane, which are also involved in viral entry and replication.
A recent study found that Metagenomic next-generation sequencing (mNGS) can detect pathogens in 86% of cases, outperforming conventional microbiological tests which identified pathogens in only 67% of cases. mNGS guides treatment decisions and improves patient outcomes by detecting rare/atypical pathogens.
Researchers discovered that a specific gene duplication in the fungus Madurella fahalii enables it to neutralize medication, leading to effective treatment challenges. This study highlights the potential of molecular techniques to uncover drug resistance mechanisms and pave the way for targeted therapies.
A Johns Hopkins Medicine study finds that SARS-CoV-2 corrupts white blood cells, specifically neutrophils, to impair the production of immune cells critical for fighting COVID-19. This reprogramming may lead to severe COVID cases by weakening the immune response against the virus.
Researchers have discovered that hydrogen boride nanosheets can inactivate a wide range of pathogens, including viruses, bacteria, and fungi, without the need for light activation. The nanosheets' ability to denature microbial proteins through strong physicochemical interactions confirms their effectiveness in combating various microbi...
Researchers at La Jolla Institute for Immunology discovered that CD4+ T cells target Chikungunya virus, leading to chronic inflammation and joint pain. The study suggests that these monofunctional T cells may be the culprits behind arthritis-like symptoms in CHIKV patients.
Researchers found that nanoplastics with positively charged surfaces caused physiological stress in E. coli O157:H7, leading to increased Shiga-like toxin production. The bacteria's ability to colonize and multiply was also impaired.
A new method using artificial intelligence and DNA decoding can predict how well disease-causing bacteria like Listeria tolerate disinfectants. The research may lead to smarter hygiene strategies and faster responses when pathogenic bacteria are present in food production.
A new study by University of California San Diego researchers found that the SARS-CoV-2 virus emerged in humans via wildlife trade, not a lab leak. The viruses most closely related to SARS-CoV-1 and SARS-CoV-2 were found in palm civets and raccoon dogs in southern China.
A novel vaccine platform uses genetically fused antigen to albumin, which is actively transported across the mucosal barrier by FcRn receptor. This results in protective systemic and mucosal antibody responses against SARS-CoV-2 and influenza A.
Researchers used CRISPR interference to examine every gene in the human genome and discovered a new set of genes contributing to Parkinson's disease risk. The study identified the Commander complex, which regulates lysosomal function and is implicated in PD risk, offering opportunities for new treatments.
A study in Tanzania found that eliminating worm infections, such as Wuchereria bancrofti, can reduce the risk of contracting HIV. The research, conducted between 2007 and 2019, showed a significant decrease in HIV incidence among people cured of the worm infection, compared to those who remained infected or never had the infection.
A novel selective medium was developed to isolate Escherichia albertii, a previously uncharacterized species. The CT-PS-XR-MacConkey agar selectively differentiated E. albertii from other bacteria, including those in food samples. This finding has significant implications for the identification and study of this pathogen.
Novel biomarkers like miRNA-34a link anthracyclines to cardiotoxicity, while stem cell therapy and nanotechnology offer potential for prevention and treatment. Traditional strategies have limitations, but new approaches hold hope for improved patient outcomes.
A team of researchers from the University of Pennsylvania School of Veterinary Medicine has made a groundbreaking discovery about the immune system's response to the latent stage of Toxoplasma gondii. The study found that certain T cells can target neurons containing cysts, promoting parasite control. However, this process also poses a...
A new study finds that Canada is the slowest country to report genetic information about bird flu, with an average time of 618 days. However, the same researchers note that Canada was able to improve its response to COVID-19, highlighting the need for similar urgency in addressing this public health threat.
A team of researchers discovered that lactate dehydrogenase (BbLDH) is essential for Borrelia burgdorferi growth and infectivity. As a unique biochemical feature, BbLDH can be targeted to develop genus-specific inhibitors for Lyme disease treatment.
Research finds over 25% of Egyptian milk and dairy products contain E. coli, with one strain causing a Japanese school outbreak; experts hope for effective treatment and prevention methods.
A new global guideline has been published to manage fungal infections caused by Candida, affecting millions worldwide annually. The guideline establishes standards for prevention, diagnosis, and innovative treatment approaches.
Researchers found a genetic change, pR552*, that could give the RB1 gene a new function leading to cancer growth. This challenges the common belief that both copies of the RB1 gene must be damaged for cancer to develop.
A deadly ciliate parasite has decimated sea urchin populations in the Caribbean, Red Sea, and Indian Ocean, with mortality rates reaching over 90%. The International team of researchers is working to track the disease and preserve sea urchins, which play a crucial role in maintaining coral reef health.
Researchers at La Jolla Institute for Immunology discovered that tissue-resident memory CD8 T cells rise up to fight infections in the small intestine, using spatial transcriptomics technology. These immune cells are split between villi and crypts, with progenitor-like cells replenishing effector T cells.
A new study from UC Davis suggests that farmers can co-manage their areas for both agriculture and conservation by assessing the size of bird droppings. Smaller poops from smaller birds carry very low risk of foodborne pathogens, making it unnecessary to remove habitat or implement no-harvest buffers.
Researchers have analyzed ancient DNA from Mexico, Chile, Peru, and Argentina to determine the origin of syphilis. The study found that syphilis-like infections occurred in the Americas for millennia and supports an American origin for the disease.
Researchers have discovered unique features of Salmonella dry surface biofilms, including a dense capsule and 'sandwich-like' structure, which contribute to their antimicrobial resistance. The study also identified potential safety concerns and developed an effective water-free antibiofilm strategy for the food industry.
A new simulator study demonstrates the role of the nasal cavity in dispersing respiratory aerosols, impacting disease transmission. Aerosol dynamics vary depending on exhalation method and environment.
A breakthrough in vaccine development has led to the creation of an effective, inexpensive, and simple COVID-19 vaccine that can be stored at room temperature. The nano-vaccine trains the immune system against all common COVID-19 variants, eliminating the need for ultra-cold storage and skilled personnel.
Researchers developed a new experimental infection model using Drosophila flies to test drugs for infectious diseases, reducing the use of vertebrate animals. The model assesses innate immunity against infections by Candida albicans and allows for the design of new therapeutic approaches targeting uncontrolled immune responses.
Researchers at Houston Methodist have identified a new strain of bacteria, Streptococcus dysgalactiae subspecies equisimilis (SDSE), linked to increasingly severe human infections. The study used integrative analysis to investigate the genome, transcriptome, and virulence of SDSE strains, shedding light on their molecular pathogenesis.
A cohort study found that postacute infection syndrome is not exclusive to COVID-19, but it can also occur in people with other severe lower respiratory tract infections. COVID-19 appears to exacerbate neurological, cognitive, and fatigue symptoms compared to other LRTIs.
Researchers from Osaka University discovered that the GPR31 receptor in gut surveillance cells detects bacterial metabolites and triggers immune responses, which could lead to new drug developments and probiotic treatments. The study also found that these receptors play a key role in the immune response to gut infections in humans.
Providencia rustigianii carries a type III secretion system and cytolethal distending toxin virulence gene, increasing its pathogenicity, similar to Salmonella.
A new app has tracked travel-related illnesses globally, showing that travelers experience health issues more often than expected. The Illness Tracking in Travellers (ITIT) app recorded gastrointestinal symptoms most frequently among Asian travelers and respiratory diseases in Europe.
Scientists at Houston Methodist will focus on developing efficacious vaccines and therapeutic antibodies for viruses in the Nairoviridae, Hantaviridae, and Paramyxoviridae families. The goal is to prepare for potential outbreaks and develop effective medical countermeasures in response to a next pandemic.
A new study from European universities has developed a method to analyze wastewater data from seven major cities, identifying thousands of disease-causing bacteria, viruses, and antimicrobial resistance. This approach can detect potential health threats simultaneously, potentially preventing epidemics from escalating into outbreaks.
The Einstein-led PROVIDENT consortium will conduct four projects to develop countermeasures against a wide range of emerging viruses, with a focus on three virus families: nairoviruses, hantaviruses, and paramyxoviruses. The grant aims to quickly respond to emerging viruses with existing research and tools.
The University of Kentucky has been awarded a six-year, $18 million NSF grant to establish the NSF ESCAPE center for assessing pathogen emergence. The center will focus on environmental surveillance using social science, engineering, bioinformatics, and risk modeling to predict and prevent pandemics.
A new vaccine created by Mizzou researchers protects cattle from bovine anaplasmosis, a devastating tick-borne disease causing hundreds of millions of dollars in economic losses. The vaccine has been proven to give immunized cattle protection for at least a month and is being discussed with industry partners for future distribution.
A newly developed compound, MOD06051, targets neutrophils and reduces harmful inflammation in rat models. This approach differs from current treatments that may have broader immunosuppressive effects, offering a safer alternative.
Texas A&M researchers are investigating the use of extracellular vesicles to deliver immune-suppressing proteins, potentially reducing the immune system's attack on insulin-producing beta-cells. The goal is to develop a novel treatment for type 1 diabetes, which currently has only lifelong insulin therapy as an approved option.
A new study published in Acta Paediatrica reports on the physical and psychological state of 19 children and 7 women who were released from Hamas captivity. The returnees suffered from various health complications, including gastrointestinal pathogens and infectious diseases, as well as trauma and poor hygiene-related issues.
Researchers analyzed ancient DNA from an 8,000-year-old sheep bone and found evidence of Brucella melitensis, a pathogen causing significant harm to livestock. The study suggests that brucellosis evolved around the same time as farming development, with early farmers creating conditions for pathogen host-jumping.
The new guidelines from the Surgical Infection Society offer updated recommendations for antimicrobial agent selection, source control, and treatment of specific pathogens. These evidence-based guidelines aim to improve clinical outcomes and reduce mortality rates from intra-abdominal infections globally.
A Cleveland Clinic-led study found that maternal Zika virus infections can reprogram fetal immune development, leading to long-term consequences in children's immunity. The changes occur even in children born without physical or neurological symptoms of congenital Zika syndrome, suggesting a broader impact.
A pilot study found evidence of human co-infections with Bartonella and Babesia odocoilei in six out of seven patients with chronic, non-specific illness. The discovery could lead to better diagnoses and treatments for patients with these infections.
Researchers have identified a new tuberculosis vaccine candidate recombinant protein MDP1 with additional post-translational modifications occurring in Mycobacterium tuberculosis cells. When expressed in M. smegmatis, MDP1 triggered notably higher levels of IFN-gamma production compared to E. coli-expressed variant.
Researchers investigate Epstein-Barr Virus and Multiple Sclerosis connection, discovering cross-reactivity between viral proteins and brain proteins. The study suggests that differences in immune cell function may explain why some people develop MS after EBV infection.
A novel real-time PCR method has been developed to detect and identify the emerging zoonotic foodborne pathogen E. albertii, which is often misidentified as E. coli. The study found that E. albertii can survive in the human intestinal tract for approximately four weeks.
A new BU study links sewage overflows to increased risk of acute gastrointestinal illnesses in downstream communities. Residents are at a 62% higher risk of developing AGI within four days after large-volume combined sewer overflows, regardless of drinking water source.
Public health authorities in nearly all US states and territories have the ability to monitor and test persons exposed to H5N1 virus. Despite this, jurisdictions vary in their preparedness plans, antiviral use recommendations, and potential vaccine deployment among first responders.