Microbes
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- Microbes
The power of microbes
A living animal is never alone. Its body — like yours — is home to trillions of microbes, or tiny single-celled organisms. Those microbes aren’t just hitchhiking. They can play an important role in separating species, researchers now report.
- Health & Medicine
Infection time
Disease is more severe when it hits in the morning, at least in mice.
- Health & Medicine
Flu in the air
Germs tiny enough to pass through surgical masks may cause half of all cases.
- Health & Medicine
Killer-flu update
Infection that recently developed in China shows signs of being easy to spread and hard to kill.
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- 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.
