Petting zoos could potentially transmit highly virulent drug-resistant bacteria to visitors

Credit: CC0 Public Domain New research presented at this year’s European Congress of Clinical Microbiology & Infectious Diseases (ECCMID) in Amsterdam, Netherlands (13-16 April) shows that petting zoos can create a diverse reservoir of multidrug resistant (MDR) bacteria, which could lead to highly virulent drug-resistant pathogens being passed on to visitors. The study is by … Read more

Dental abscess: Symptoms, treatment, and causes

A dental abscess, or tooth abscess, is a buildup of pus that forms inside the teeth or gums. The abscess typically comes from a bacterial infection, often one that has accumulated in the soft pulp of the tooth. Bacteria exist in plaque, a by-product of food, saliva, and bacteria in the mouth, which sticks to … Read more

Urinary tract infection: Causes, symptoms, and prevention

Urinary tract infections are caused by microbes such as bacteria overcoming the body’s defenses in the urinary tract. They can affect the kidneys, bladder, and the tubes that run between them. They are one of the most common types of infection and account for around 8.1 million visits to a doctor every year. The urinary … Read more

Privacy curtains could be reservoir of deadly bacteria: study

Credit: CC0 Public Domain Hard-to-clean privacy curtains in hospitals and nursing homes worldwide may be contaminated with deadly drug-resistant bugs, according to findings to be presented Saturday at an infectious diseases conference. More than a fifth of 1,500 samples taken from six post-acute care nursing facilities in the United States were laced with one or … Read more

Immune system is potential culprit in causing cavities, damaging fillings

Collagen after incubation with neutrophils for 24 hours: Image at right depicts a loss of collagen fibril network when incubated with neutrophils. Credit: Russel Gitalis A new study by researchers at the University of Toronto’s Faculty of Dentistry provides the first evidence that the body’s own defence system could be a major contributor to tooth … Read more

A special ‘stained glass’ can help kill hospital ‘superbugs’

New research applies a glass-staining technique that is hundreds of years old to create a material that repels dangerous bacteria and fungi. In the future, specialists could use this “bioactive glass” to create safer clinical tools, such as catheters. A new type of medical grade ‘stained glass’ can completely kill many dangerous bacteria. A team … Read more

Bacteria share genes with one another, even across tissue boundaries

Bacteria in the human body are sharing genes with one another at a higher rate than is typically seen in nature, and some of those genes appear to be traveling – independent of their microbial hosts – from one part of the body to another, researchers report in the journal Scientific Reports. The findings are … Read more

Bacteria flip an electric switch to worsen food poisoning: Infection-driven change in macrophage movements disseminates bacteria throughout the body

Salmonella bacteria flip an electric switch as they hitch a ride inside immune cells, causing the cells to migrate out of the gut toward other parts of the body, according to a new study publishing on April 9 in the open-access journal PLOS Biology by Yaohui Sun and Alex Mogilner of New York University and … Read more

Researchers uncover how innocuous gut bacteria mutated to become deadly blood infectors

A microscope image of wild-type (left) and mutant (right) Enterococcus faecalis bacteria. Credit: D. Van Tyne et al., Science Translational Medicine (2019) A team of researchers from several institutions in the U.S. has unveiled the evolutionary process that transformed a common type of human gut bacteria into a deadly infectious agent. In their paper published … Read more

Century-old bacteria from sick WWI soldier offer clues to cholera epidemics

Scanning electron microscope image of Vibrio cholerae bacteria. (Photo: Wikimedia Commons) CAMBRIDGE: Scientists have mapped the genome of a strain of cholera extracted a century ago from a sick British soldier during World War I and found clues to how some cholera bacteria strains cause epidemics today. The bug – thought to be the oldest … Read more

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