Orthomyxoviridae

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.

Anchor Lisa Mullins speaks with scientists Colin Russell and Derek Smith, two of the authors of a study out today in the magazine Science on the way the flu virus travels the globe.