Tagged: bacteria

Why is meningitis so dangerous?

In 1987, thousands of people gathered in Saudi Arabia for the annual Hajj pilgrimage. But what started out as a celebration led to a worldwide health crisis: more than 2,000 cases of meningitis broke...

Sam ate a slug, became paralyzed and died

In 2010, 19-year-old Sam, an avid rugby player, was drinking with Jimmy Galvin and several more of his Australian “mates” when a slug began crawling across Galvin’s concrete patio at his home in Sydney....

Gut bacteria’s shocking secret: They produce electricity

UC Berkeley scientists discovered that a common diarrhea-causing bacterium, Listeria monocytogenes, produces electricity using an entirely different technique from known electrogenic bacteria, and that hundreds of other bacterial species use this same process. Many of...

Gut bacteria byproduct protects against Salmonella

Researchers at the Stanford University School of Medicine have identified a molecule that serves as natural protection against one of the most common intestinal pathogens. Propionate, a byproduct of metabolism by a group of bacteria called...

A gut bacterium’s guide to building a microbiome

The mammalian gut is warm, moist, and incredibly nutrient-rich—an environment that is perfect for bacterial growth. The communities of “good bacteria” in the gut, commonly referred to as the microbiome, are vital partners for...

Bacteriophage: the deadliest being on planet earth

A bacteriophage is a type of virus that infects bacteria. In fact, the word “bacteriophage” literally means “bacteria eater,” because bacteriophages destroy their host cells. All bacteriophages are composed of a nucleic acid molecule...