Microbes

Health & Medicine

Killer-flu update

Infection that recently developed in China shows signs of being easy to spread and hard to kill.

Microbes

Deadly new flu

The germ responsible carries genes from other flu viruses.

Animals

Infectious animals

Critters spread many germs that can sicken each other — and even kill people.

Animals

Explainer: People can sicken animals

Wildlife can sometimes become infected with germs shed by people.

Microbes

Microscopic caffeine fiends

Researchers create a bacterium that can’t live or reproduce without a stimulant found in soft drinks, chocolate, coffee and tea.

Health & Medicine

Deadly new virus emerges

A mysterious infection has been spreading for almost a year.

Health & Medicine

The AIDS virus that vanished

Strong medicine may have rid a newborn of deadly HIV.

Planets

Home on the moon

Astronomers say rocky moons orbiting distant planets might support alien life.

Health & Medicine

Ebola in the air

A deadly virus can spread through the air from pigs to monkeys.

Climate

The high life

The sky is full of microscopic life, some of which might even trigger rain or snow.

Microbes

A slime with memory

Even without a brain, this slime mold knows where it’s been.

Microbes

Bacteria learn new trick

Scientists show evolution in action in decades-long E. coli study.