Articles tagged with Bacterial Infections
A new model predicts that vaccinating infants with PCV7 can prevent over 357,000 deaths during an influenza pandemic while saving $7 billion in costs. The research also shows routine pneumococcal vaccination can reduce flu-related deaths and costs in a typical season.
A study found that individuals taking statins before hospitalization for pneumonia had a lower risk of death within 90 days, particularly among those older than 80 and with bacteremia. The benefits were seen primarily in the early phase of infection, suggesting that statin use is beneficial primarily in the initial stages of infection.
Phase III trials demonstrate iclaprim's effectiveness in treating complicated skin and skin structure infections caused by Gram-positive bacteria, including MRSA. The antibiotic showed a high clinical cure rate similar to linezolid and was well-tolerated with a favorable safety profile.
A Salmonella infection has been used to study the immune system of Drosophila melanogaster flies, revealing a key role for growth factor Decapentaplegic (Dpp) in regulating immune responses. Dpp mutant flies have impaired immune cell production and are unable to fight off pathogens.
MRSA infections cause only 14 percent of hospital infections, making targeted screening programs less effective. A study by VCU epidemiologists suggests that hospital-wide infection control practices can prevent more infections than focusing on a single pathogen.
NIAID scientists will present research on various infectious diseases, including noroviruses, Crohn's disease, and antibiotic-resistant infections. The talks aim to advance our understanding of these conditions and develop effective treatments.
Researchers found that Sharpie tips do not spread infection due to alcohol-based ink. In contrast, sterile markers with non-alcohol base ink were contaminated after 24 hours. The study suggests that reusable Sharpies can be used safely with proper cleaning and disinfection.
A new blood test has been shown to identify patients at risk of developing active tuberculosis (TB) with greater precision than the traditional skin test. The ELISpot blood test can pinpoint those who need preventative treatment, reducing unnecessary treatments and associated risks.
Researchers at Rutgers University have identified a new antibiotic target and mechanism that may lead to new treatments for tuberculosis. The study found that three antibiotics block the action of bacterial RNA polymerase, an enzyme essential for bacterial survival.
New research identifies key factor in treatment delay: flock management philosophy. Early identification and individualized treatment of footrot can reduce lameness incidence by up to 80%. The study suggests farmers have the skills to follow best practices but may need resources to implement them.
Researchers at UT Southwestern found that adding corticosteroids to traditional antimicrobial therapy can help people with pneumonia recover faster and have less inflammation in their lungs. The study also suggests a potentially more effective therapy for asthma attacks triggered by bacterial pneumonia.
Scientists have developed a rapid new technique called Rapid Virulence Annotation (RVA) to identify toxins and virulence factors made by bacteria that allow it to infect different types of organisms. This discovery could lead to new vaccines and anti-bacterial drugs, as well as help prevent diseases caused by disease-causing bacteria.
Researchers have discovered how bacteria respond to stress, shedding light on their infectious potential and the development of new drugs to combat bacterial infections. The stressosome molecule protects cells from external danger, triggering a response to adapt to changes in environment.
A significant proportion of people with no recent exposure to antibiotics developed community-acquired C. difficile infection, suggesting other risk factors may be at play. Researchers recommend considering C. difficile testing in community patients with diarrhea without a history of antibiotic use.
Researchers found that commensal bacteria DNA binds to receptors on immune cells, boosting protective T cells and clearing pathogens. This natural adjuvant mechanism enables the immune system to distinguish between harmful and beneficial microbes.
TB bacteria coat themselves with mannose, making them attractive to lung cells that clean up unwanted sugar. This allows the bacteria to slip by the immune system, leading to latent infection. Two strains of TB have been found that do not use this sugar coating, suggesting specific interactions between strains and human immune systems.
A study by the University of Nottingham aims to identify bacterial antigens that could lead to an effective vaccine against Bovine Mastitis. The researchers will use state-of-the-art molecular technology to determine which proteins are essential for infection.
Research funded by the Wellcome Trust suggests that inflammation in the brain resulting from infection or injury may accelerate the progress of dementia. Systemic inflammation can cause changes in memory and learning, leading to accelerated progression of dementia.
Research found that only 8.5% of patients accounted for 98% of guinea pig TB infections, highlighting the high infectiousness of inadequately treated drug-resistant TB patients. Implementing TB infection control measures can prevent airborne transmission in healthcare facilities.
Researchers found that multiple viral genomes can increase overall viral gene expression, leading to a nonlinear effect on gene networks controlling cell fate. This can result in the host cell entering a latent state rather than immediately being killed by the virus.
A study at UT Southwestern Medical Center found that a bacterial molecule must be inactivated, not just killed, for an animal to regain full health after infection. The 'signal' molecule, lipopolysaccharide (LPS), triggers the immune response and causes inflammation, but also suppresses it temporarily.
Despite medical progress, infective endocarditis death rates are rising again, driven by antibiotic-resistant bacteria and degenerative heart valve disease. Early surgery can save lives but requires expert care and precise timing.
Scientists have identified a direct role for the missing protein CFTR in cystic fibrosis, allowing it to recognize and clear lung-damaging bacteria. This breakthrough could lead to new treatments and prolong the lives of patients, who currently face a high risk of death before their 35th birthday due to chronic lung infections.
A new light-activated antimicrobial treatment has shown promise in killing a wide range of bacteria, including drug-resistant MRSA, in infected wounds and burns. The treatment uses indocyanine green dye activated by near-infrared light to produce toxic molecules that rapidly kill the bacteria.
Sticky glue secreted by Staphylococcus aureus bacteria may hold the key to creating an effective vaccine against MRSA. Researchers have found that manipulating this natural compound can stimulate the right immune response, offering a potential solution to the growing problem of antibiotic-resistant infections.
Scientists have discovered that milk may help prevent Staphylococcus bacteria from being killed by low concentrations of antibiotics. This could lead to a better control of mastitis, reduce disease costs, and lower the risk of antibiotic-resistant bacteria spreading.
Researchers found 15% of amniotic fluid samples harbored bacteria or fungi, contributing to premature birth. The heavier the burden, the more likely a baby was born younger and sicker.
Researchers at Johns Hopkins Bloomberg School of Public Health identified a new virus, AgDNV, infecting Anopheles gambiae mosquitoes. The virus, a densovirus, could be used to pass on genetic information to control malaria transmission.
Researchers discovered that Leishmania major parasites exploit the body's wound-healing response to sand fly bites, evading death and establishing long-term infection. Neutrophils play a critical role in the development of the disease, allowing parasites to survive inside them before escaping into macrophages.
Researchers at the University of California, San Diego, have discovered that flesh-eating bacteria can survive and spread in the body by degrading a key immune defense molecule. By inactivating this molecule, white blood cells become slower and weaker, allowing infections to spread out of control.
Scientists discovered a new Prevotella species in the mouth, which could help understand oral diseases. The finding confirms that oral bacteria can invade tissues and individual cells, paving the way for new prevention measures and treatments.
Researchers have made significant progress in understanding how Staphylococcus aureus bacteria bind to human proteins fibronectin, shedding light on serious heart infections. The study could lead to the development of new treatments for rare but life-threatening conditions like infective endocarditis.
A two-year study by UT Houston researchers found that 53% of women who tested positive for GBS during their first pregnancy were also positive during their second. The study suggests that retesting women in subsequent pregnancies may not be cost-effective due to the high recurrence rate.
A recent study published in the peer-reviewed journal AIDS found a significant association between bacterial vaginosis and an increased risk of HIV infection. The analysis of over 30,700 women from around the world showed that women with BV were more likely to acquire HIV than those without it.
Researchers have discovered a new immune disease that affects the innate immune system of children with a deficiency in the MyD88 gene. The study found that these children can see off other infections but still die from widespread infection by common bacteria like pneumococci and staphylococci.
A nationwide study found a sharp increase in skin infections, with abscesses and cellulitis rates nearly quadrupling in safety-net emergency departments and tripling among children. The study suggests community-acquired MRSA is the main cause of this rise, affecting all populations but those over 45 less severely.
Researchers have discovered two new β-Lactam antibiotics that target MRSA, a major global health threat responsible for approximately 20,000 US deaths annually. The novel compounds interact with the MRSA cell wall enzyme PBP 2a, inhibiting its function and leading to bacterial cell death.
Researchers at the Helmholtz Center for Infection Research discovered that biofilm bacteria use violacein, a pigment produced in response to threats, to neutralize attackers and trigger a suicide mechanism in phagocytes. This finding presents a new avenue for combating human parasites causing diseases like sleeping sickness and malaria.
A new study reveals that cranberry juice alters the thermodynamic properties of bacteria in the urinary tract, creating an energy barrier that prevents attachment. This effect occurs at concentrations comparable to those found in the urinary tract, suggesting regular consumption may prevent UTIs.
Researchers at A*STAR's IMCB have identified peptidoglycan as a factor that causes Candida albicans to become infectious. The discovery may lead to the development of novel treatments for immunocompromised patients infected by the fungus.
A new consortium aims to tackle healthcare-associated infections like MRSA and Clostridium difficile, exploring molecular makeup, hospital staff habits, and data analysis. The £4.2M project will create nine PhD fellows and develop new tools for detecting and controlling infections.
A new study has identified a molecular alarm system in which intracellular pathogens send signals to kick the immune response into gear. The findings shed light on how cells recognize and destroy pathogenic bugs living within their walls, potentially providing new targets for vaccine and drug research.
A three-dose pneumococcal vaccination program has shown a 70% reduction in serious infections among young children in Norway. The vaccine protects against seven serotypes of pneumococcus, responsible for 70% of severe cases.
Researchers have developed molecules that can mimic Yersinia pestis, a type of plague bacteria, to stimulate the innate immune response and protect against pneumonic plague. These synthetic modified lipid A compounds have been shown to be effective in treating infected animals, with up to 93% survival rate.
A new study published in Clinical Infectious Diseases found that patients harboring MRSA for long periods are at increased risk of developing infections, including pneumonia and bloodstream events. The study showed that nearly a quarter of MRSA-colonized patients developed infections within a year or more after colonization was confirmed.
Children with acute osteomyelitis are developing more severe MRSA infections, resulting in longer hospital stays and antibiotic therapy. Researchers found that MRSA infections were associated with higher rates of bone abscesses, muscle inflammation, and the need for surgical drainage.
Recent studies in Papua and New Guinea reveal P. vivax cases, particularly in young children, are more likely to develop severe disease and experience cerebral malaria.
Researchers found that misoprostol suppresses key immune responses and allows deadly infection to occur. The study has implications for understanding rare but life-threatening infections during pregnancy. More than a half-million women have taken the two-drug combination safely since its FDA approval in 2000.
Scientists have discovered a molecular trick used by Salmonella to evade the immune system, giving it crucial time to establish itself in the host before symptoms appear. The AvrA protein helps reduce inflammation, allowing the bacteria to avoid detection and spread more easily.
A study of 290 dental patients found bacteria in the blood after tooth brushing and extractions, but with lower incidence than expected. The researchers suggest that good oral hygiene can reduce the risk of heart valve infection by reducing gingival disease and bacterial species associated with IE.
Researchers suggest that increasing white blood cell count or enhancing infected cells' interaction with the immune system could be effective strategies for developing vaccines or treatments specifically for elderly TB patients. Aging affects the immune response, leading to a slower and less effective fight against the infection.
A study by Cardiff University found that current hospital protocols for antimicrobial wipes can spread pathogens like MRSA. Implementing a single-use, one-surface-per-wipe approach could reduce MRSA incidence in hospitals.
A new vaccine targeting more common pneumococcal strains is on the horizon to replace PCV7, which has seen a rise in non-vaccine strain IPD rates by 40%. The vaccine's effectiveness against resistant bacteria is currently being tested.
A new study by Cardiff University researchers found that antimicrobial-containing wipes used in hospitals can spread pathogens after first use. The study highlights concerns over the suitability of these wipes and the importance of regular surveillance programs to reduce infection risks.
Researchers found that only two strains of Salmonella are common in garden birds, which are sensitive to antibiotics. This contrasts with the more resistant strains found in livestock and humans, highlighting the need for alternative approaches to infection control.
A randomized controlled trial involving 285 students found that disinfecting surfaces and using hand sanitizer reduced gastrointestinal illness-related absences by nine percent. The study suggests that elementary schools consider simple infection control practices to help keep students healthier.
A recent study highlights the importance of understanding C. difficile's toxins and virulence factors, which can cause severe hospital-acquired infections. The research also explores the bacteria's transmission, symptoms, and treatment options, including the development of a potential 'designer' probiotic.
A study found high levels of Staphylococcus aureus and Escherichia coli bacteria in infant deaths that couldn't be explained. The researchers suggest these infections may be associated with unexplained cases of SUDI.
Researchers at Caltech identified a sugar molecule produced by beneficial gut bacteria that induces immune cells to produce anti-inflammatory molecules, potentially treating inflammatory bowel diseases. The discovery suggests a new approach to treating human diseases linked to the loss of beneficial microbial interactions with our bodies.
Surgical antibiotic prophylaxis has increased the risk of Clostridium difficile infection by 21 times, with severe consequences for patients. Researchers suggest minimizing antibiotic duration to reduce risks and benefits.