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Stories by Carrie Arnold

Virus Pumps Up Male Muscles--in Mice

A virus that influences the development of the placenta in mammals could also help to explain male animals’ physique

September 12, 2016 — Carrie Arnold and Nature magazine

How Mutant Viral Swarms Spread Disease

Viruses exist as “mutant clouds” of closely related individuals, an insight that is helping researchers predict where disease is likely to spread

September 14, 2015 — Carrie Arnold and Quanta Magazine

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