Scientists have uncovered the oldest known genome of the bacterium responsible for syphilis, revealing a previously unknown lineage that existed thousands of years ago in the Americas.

Deep inside a Romanian ice cave, locked away in a 5,000-year-old layer of ice, scientists have uncovered a bacterium with a startling secret: it’s resistant to many modern antibiotics. Despite ...

The gut bacterium Bacteroides fragilis has long presented researchers with a paradox. It has been associated with colorectal cancer, yet it also lives quite happily in most healthy people. A study by ...

Researchers created an oral cancer vaccine using a food poisoning bacterium that helps the immune system detect and attack colorectal tumors.

New tick-borne bacteria discovered in dogs in the US, Rickettsia finnyi, is very similar to canine spotted fever.

Hardy bacteria could survive the trip from one planet to another, hidden among the debris from an asteroid impact, a new study suggests, providing possible evidence for a theory that the seeds of life ...

Researchers from the University of Sydney and the Centenary Institute have discovered how a promising class of experimental ...

A potentially deadly type of bacterium previously found only in parts of Southern Asia, Africa or Australia has been detected for the first time in soil and water samples in the U.S., the Centers for ...

Scientists have discovered a bacterium in Romanian cave ice that resists antibiotics used to treat infections including tuberculosis, colitis, and UTIs.