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Another study may have underestimated the prevalence of the bacterium in these products since a selective medium was not used (5).
Because of this hardiness, the bacterium can persist in a person's body for years.
The researchers fed some of the mice a solution containing the bacterium Bacteroides thetaiotaomicron and gave other mice a solution containing the archaeon Methanobrevibacter smithii.
There's maybe a one in a million chance that a mutation will allow a bacterium to resist an antibiotic," says Michael Starnbach, a microbiologist at the University of Washington School of Medicine in Seattle.
Health authorities are tracking a particularly nasty bacterium, E coli 0157.
Previous studies had shown that when this bacterium injects Map into cells, they respond by flexing their cytoskeletons, the internal fibers that set a cell's shape and move around its contents.
The scientists are working with a strain of the bacterium that doesn't make people sick.
A bacterial species that typically colonizes people's noses may win out over another bacterium by tattling to the human immune system, a new study suggests.
If you do the math, 39,000 lives have been lost since 1983 due to this bacterium alone.
Once a bacterium develops drug resistance, a genetic element that's common in bacteria enables the newfound invulnerability to rapidly spread to other bacteria--even beyond the original species.
Since the bacterium was often found in the gall bladder in our study, it implies that they use the genes routinely.
He says, however, that he's skeptical that evolution led the bacterium to tug on cell membranes in just the right way to lengthen the cells' survival.
No currently available antibiotics target the attachment of a bacterium to its target tissue.
Comstock and her colleagues at Harvard Medical School in Boston examined Bacteroides fragilis, a common gut bacterium.
Griffins team studied Pseudomonas aeruginosa, a bacterium that infects the lungs of people with cystic fibrosis.