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19:27
Swine Flu Update
The World Health Organization has raised its infectious disease alert level to phase 5 for the H1N1 virus known as swine flu. As infections spread worldwide, experts say that containing the virus is no longer possible. But many scientists studying the virus say the current strain is less severe than previous outbreaks or even the average seasonal flu. Larry Mantle gets an update on the outbreak from LA Times science writer Karen Kaplan and influenza expert Dr. Ralph Tripp.
The World Health Organization has raised its infectious disease alert level to phase 5 for the H1N1 virus known as swine flu. As infections spread worldwide, experts say that containing the virus is no longer possible. But many scientists studying the virus say the current strain is less severe than previous outbreaks or even the average seasonal flu. Larry Mantle gets an update on the outbreak from LA Times science writer Karen Kaplan and influenza expert Dr. Ralph Tripp.