A new DNA sequencing technique has enabled researchers to map for the first time the influential chemical modifications known as methylation marks throughout the genome of a pathogenic bacterium.
A genetic comparison of E. coli strains, including the one responsible for the recent outbreak of infections in Europe, underscores how rapidly evolving bacterial genomes can lead to the emergence of new pathogens.
After a rapid genetic analysis of bacteria collected from Haitian patients, scientists conclude that the strain of cholera currently sweeping through post-earthquake Haiti originated in South Asia.
Safe and effective vaccines could complement efforts to treat those already infected with cholera and provide clean water and sanitation to control its spread.
In the overwhelmingly left-handed world of amino acids, the right-handed versions of a few such molecules act as signals that spur bacteria to adapt to changing conditions.
Howard Hughes Medical Institute researchers have discovered that the commonly prescribed antibiotic ciprofloxacin is among those that may inadvertently trigger the spread of antibiotic resistance genes between different species of bacteria.