Unlike many bacteria, listeria can survive and reproduce in harsh conditions like cold temperatures of a refrigerator and without oxygen. This makes it challenging to control if the bacteria ...

The rod-shaped tuberculosis (TB) bacterium, which the World Health Organization has once again ranked as the top infectious ...

These factors mean small organisms that make copies of themselves quickly — like bacteria — evolve much more quickly than large ones that take a long time to reproduce, like elephants. This rapid ...