virus virus
Thomas Kuhlenbeck/Ikon Images/Corbis

Wherever You Go, Your Personal Cloud Of Microbes Follows

  • Download
  • <iframe src="https://www.npr.org/player/embed/441841735/442582514" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Scientists think the lone star tick (center) likely transmits Heartland disease to people. And the virus probably also circulates in deer and coyotes. iStockphoto; CDC; iStockphoto hide caption

toggle caption
iStockphoto; CDC; iStockphoto

A blood test developed by Harvard researchers checks for evidence of past infection with more than a thousand strains of virus, from about 200 virus families. The swine flu virus shown here, A/CA/4/09, rarely infects humans. C. S. Goldsmith/CDC hide caption

toggle caption
C. S. Goldsmith/CDC

How Many Viruses Have Infected You?

  • Download
  • <iframe src="https://www.npr.org/player/embed/411469959/412177090" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Augustine Goba (right) heads the laboratory at Kenema Government Hospital in Sierra Leone. He and colleagues analyzed the viral genetics in blood samples from 78 Ebola patients early in the epidemic. Stephen Gire/AP hide caption

toggle caption
Stephen Gire/AP

Could This Virus Be Good For You?

  • Download
  • <iframe src="https://www.npr.org/player/embed/382260897/382588014" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Biologist Rob Knight, co-founder of the American Gut Project, recently moved the project to the University of California, San Diego's School of Medicine. Casey A. Cass/University of Colorado hide caption

toggle caption
Casey A. Cass/University of Colorado

Ecologists found signs of Ebola in a Rousettus leschenaultii fruit bat. These bats are widespread across south Asia, from India to China. Kevin Olival/EcoHealth Alliance hide caption

toggle caption
Kevin Olival/EcoHealth Alliance

Where Could Ebola Strike Next? Scientists Hunt Virus In Asia

  • Download
  • <iframe src="https://www.npr.org/player/embed/371994171/374511137" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

A woman protects her child's face in Managua, Nicaragua, as health workers fumigate for mosquitoes that carry chikungunya. The virus started spreading through Nicaragua and Mexico in the fall. Esteban Felix/AP hide caption

toggle caption
Esteban Felix/AP

Painful Virus Sweeps Central America, Gains A Toehold In U.S.

  • Download
  • <iframe src="https://www.npr.org/player/embed/374198141/374417526" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

The dengue virus has an icosahedral shape, similar to the pattern on a soccer ball. Antibodies stop the virus by binding to its surface. Laguna Design/Science Source hide caption

toggle caption
Laguna Design/Science Source

Stringy particles of Ebola virus (blue) bud from a chronically infected cell (yellow-green) in this colorized, scanning electron micrograph. NIAID/Science Source hide caption

toggle caption
NIAID/Science Source

Virus Sleuths Chip Away At Ebola Mysteries

  • Download
  • <iframe src="https://www.npr.org/player/embed/359837446/360300799" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Caribous doing their business in mountain ice have left a viral record hundreds of years old. Courtesy of Brian Moorman hide caption

toggle caption
Courtesy of Brian Moorman

Ancient Viruses Lurk In Frozen Caribou Poo

  • Download
  • <iframe src="https://www.npr.org/player/embed/359340643/359403549" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

We are all Russian nesting dolls: Our intestines house many bacteria, which house many viruses. These so-called bacteriophages are likely as important for our health as the bacteria they live in. Lisa Brown for NPR hide caption

toggle caption
Lisa Brown for NPR