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Cluster of factors could help predict C. diff

Researchers identified a cluster of five risk factors associated with unhealthy gut microbial communities, which can increase the risk of C. diff infection. The study suggests potential preventive interventions, including dietary changes and fecal transplantation from healthy donors.

SourceOhio State University·JournalScience Translational Medicine·DateOct 24, 2018

Tracking a killer

UCSB, UCSD, and SBP researchers developed a method to track sepsis development on a molecular level, revealing different pathways depending on host responses to various pathogens. Boosting anti-inflammatory activity or blocking TLR-4 activation showed potential as therapeutic approaches.

SourceUniversity of California - Santa Barbara·JournalCell Host & Microbe·DateOct 10, 2018

Sink traps are surprising source of antibiotic-resistant bacteria in ICU

Researchers found antibiotic-resistant bacteria in sink traps of an Israeli hospital's intensive care unit. Implementing sink contamination prevention guidelines eliminated new infections and zeroed out infections altogether. The study highlights the importance of proper hygiene practices in preventing the spread of resistant bacteria.

SourceSociety for Healthcare Epidemiology of America·JournalInfection Control and Hospital Epidemiology·DateOct 5, 2018

Vampire bats found to carry infectious bacteria at high rates

A study found that 67% of vampire bats in Belize and Peru are infected with Bartonella bacteria, which can cause endocarditis. The research suggests transmission may occur through bites or environmental contamination, highlighting the risk of cross-species transmission.

SourcePLOS·JournalPLOS Neglected Tropical Diseases·DateSep 27, 2018

Fecal microbiota transplantation helps restore beneficial bacteria in cancer patients

Researchers found that autologous fecal microbiota transplantation (auto-FMT) restored beneficial gut bacteria to near baseline levels within days, mitigating the effects of intense antibiotic treatment. This approach may prove a simple way to quickly restore a healthy microbiome following intensive antimicrobial therapy.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalScience Translational Medicine·DateSep 26, 2018

How leaves talk to roots

A microRNA called miR2111 travels from leaves to roots, downregulating a gene that would hinder root responses to symbiotic bacteria. This finding helps understand the mechanisms of efficient nitrogen-fixing symbiosis and potential ways to exploit it agronomically.

SourceAarhus University·JournalScience·DateSep 25, 2018

Common weed killer linked to bee deaths

A new study from the University of Texas at Austin finds that exposure to glyphosate, a common weed killer, reduces healthy gut microbiota in honey bees and makes them more vulnerable to infection. This compromise can lead to bee deaths, particularly when exposed to opportunistic pathogens.

SourceUniversity of Texas at Austin·JournalProceedings of the National Academy of Sciences·DateSep 24, 2018

Manganese plays a key role in bacterial infection

Enterococcus faecalis relies on manganese acquisition systems for virulence, which are essential for growth in manganese-restricted environments. Inactivating these transporters led to a loss of virulence in animal models, making them promising targets for new antimicrobial therapies.

SourcePLOS·JournalPLOS Pathogens·DateSep 20, 2018

Study IDs why some TB bacteria prove deadly

Researchers found that a single mutation in TB bacteria makes them resistant to antibiotics and elicits a weaker immune response, leading to higher mortality rates. The study suggests that the same approach may not work for drug-resistant TB strains.

SourceWashU Medicine·JournalNature Microbiology·DateSep 17, 2018

Leptospirosis strains identified in Uruguay cattle

Researchers identified 40 different Leptospira strains in Uruguay cattle, including rare isolates and serotypes matching those found in human leptospirosis patients. The discovery highlights the need for improved diagnostic tools and vaccination strategies to mitigate the risk of human infection.

SourcePLOS·JournalPLOS Neglected Tropical Diseases·DateSep 13, 2018

How bad bacteria gain an edge in the gut

Clostridium difficile produces p-cresol to control intestinal microbiota and confer fitness advantage over natural protective bacteria. This compound may provide a novel drug target for reducing C. difficile infection.

SourcePLOS·JournalPLOS Pathogens·DateSep 11, 2018

Superbugs jumping frequently between humans and animals

A recent study published in Nature Ecology & Evolution found that superbugs like MRSA have a complex evolutionary history, with cows being the source of strains causing human infections worldwide. The research highlights the importance of monitoring antibiotic resistance and developing strategies to minimize its spread.

SourceUniversity of Helsinki·JournalNature Ecology & Evolution·DateSep 7, 2018

Bird bacteria study reveals evolutionary arms race

A recent study has found that birds develop resistance to bacterial infections, which in turn leads to the evolution of more potent pathogens. This host-pathogen coevolution process plays a key role in shaping species' defenses and highlights the importance of understanding emerging infectious diseases.

SourceUniversity of Exeter·JournalCurrent Biology·DateSep 6, 2018

Antimicrobial stewardship programs in dialysis clinics reduce infections, costs

Implementing antimicrobial stewardship programs in out-patient dialysis facilities can significantly reduce infections caused by multidrug-resistant organisms, infection-related deaths, and costs. The programs promote the appropriate use of antimicrobials, leading to a 4.8% reduction in infections and a 4.6% reduction in death rates.

SourceAmerican Society of Nephrology·JournalClinical Journal of the American Society of Nephrology·DateAug 23, 2018

Certain antibiotic-resistant infections on the rise, new research shows

A California emergency department study found nearly 6% of urinary tract infections were caused by drug-resistant bacteria, with no identifiable risk factor for infection in many cases. The researchers urge wider use of urine culture tests and improved follow-up systems to address the growing problem of antibiotic resistance.

SourceAmerican College of Emergency Physicians·JournalAnnals of Emergency Medicine·DateAug 21, 2018