Most bacteria, including many bacterial pathogens, are surrounded by an outer protective layer of sugar molecules, known as a capsule. This primarily protects the bacteria from environmental ...

St. Jude Children's Research Hospital scientists have identified an enzyme that acts early in pneumococcal infections to promote bacterial survival and invasive disease by removing the bacteria's ...

Vaccines that protect people from infection by Streptococcus pneumonia, which kills up to 1 million children every year worldwide, train the immune system to recognize the pathogen's thick sugar ...

We often hear about bacteria, but what exactly are they? A bacterium is a living organism that consists of a single cell (unicellular). It has ...