Latest Virulence Stories
A novel disease in songbirds has rapidly evolved to become more harmful to its host on at least two separate occasions in just two decades.
To infect its host, the respiratory pathogen Pseudomonas aeruginosa takes an ordinary protein usually involved in making other proteins and adds three small molecules to turn it into a key for gaining access to human cells.
The cholera strain that transferred to Haiti in 2010 has multiple toxin gene mutations that may account for the severity of disease and is evolving to be more like an 1800s version of cholera.
CRISPR, a system of genes that bacteria use to defend themselves against viruses, has been found to be involved in helping some bacteria evade the mammalian immune system.
UT Southwestern Medical Center researchers report that a pathogen annually blamed for an estimated 90 million cases of food-borne illness defeats a host's immune response by using a fat-snipping enzyme to cut off cellular communication.
All biologists know performing sensitive biological experiments is a delicate affair, akin to baking a soufflé in a busy house. Few of those biologists, however, have to deal with the daily and unique challenges faced by Cheryl Nickerson, a microbiologist at Arizona State University's Biodesign Institute.
A new study by NYU School of Medicine researchers reveals that an especially virulent strain of the gut bacterium Helicobacter pylori (H. pylori) isn't implicated in the overall death rate of the U.S. population, and may even protect against stroke and some cancers.
Two years ago, a 71-year-old Indiana man impaled his hand on a branch after cutting down a dead crab apple tree, causing an infection that led University of Utah scientists to discover a new bacterium and solve a mystery about how bacteria came to live inside insects.
Rather than trying to kill bacteria outright with drugs, Université de Montréal researchers have discovered a way to disarm bacteria that may allow the body's own defense mechanisms to destroy them.
Acinetobacter baumanni, a pathogenic bacterium that is a poster child of deadly hospital acquired infections, is one tough customer.
Acinetobacter baumannii is a species of pathogenic bacteria that is resistant to most antibiotics. Some think the disease is killing tens of thousands of U.S. hospital patients each year due to its resistance to drug treatment. It can cause severe pneumonia and infections of the urinary tract, bloodstream, and other parts of the body. It forms opportunistic infections including reports of attacking wounded soldiers and is sometimes abbreviated as MDRAB. It is the most relevant human...