Swine flu source

The World
The World

Anchor Marco Werman speaks with Ellen Silbergeld, professor of environmental health sciences at Johns Hopkins School of Public Health, about what scientists know so far about the swine flu virus, or “Influenza AH1N1.” Some think industrial-size pig farms in Mexico may have played a role in creating the virus.

Help keep The World going strong!

The article you just read is free because dedicated readers and listeners like you chose to support our nonprofit newsroom. Our team works tirelessly to ensure you hear the latest in international, human-centered reporting every weekday. But our work would not be possible without you. We need your help.

Make a gift today to help us reach our $25,000 goal and keep The World going strong. Every gift will get us one step closer.