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Virology

Three panels show a cow, a chicken and a woman, with viral particles moving from each animal to the woman.
Health & Disease

Everything you need to know about bird flu

How dangerous is it? Where did it come from? H5N1 influenza’s origins stretch back to the 1990s, and key events paved the way for the outbreak we’re seeing today.

Collage with images of hospital, bacteria, viruses, patient and health-care worker.
Health & Disease

What if a virus could reverse antibiotic resistance?

In promising experiments, phage therapy forces bacteria into a no-win dilemma that lowers their defenses against drugs they’d evolved to withstand

Conceptual illustration. Polygonal bacteriophages inject their nucleic acid into one bacterium; elsewhere, new phages pop out of another bacterium.
Living World

The phageome: A hidden kingdom within your gut

Human innards are teeming with viruses that infect bacteria. What are they up to?

Photo of a brown wasp with narrow, ruby red eyes and long antenna leaned over sticking a long stinger into the surface beneath it.
Living World

The wasps that tamed viruses

To protect and rear their young, some insects have transformed wild viruses into tiny biological weapons

Conceptual illustration in which stylized hands use scissors to snip nucleic acid strands and tweezers to put them back together.
Health & Disease

CRISPR gene editing: Moving closer to home

With the first medical therapy approved and systems like CRISPR-Cas showing up in complex cells, there’s a lot going on in the genome editing field. Here’s our primer.

Illustration of a hepatitis C virus attacking liver cells.
Health & Disease

The remaining frontiers in fighting hepatitis C

A scientist whose work was key to identifying, studying and finding treatments for this life-threatening virus discusses the scientific journey and challenges that persist

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