The government has created a website to help individuals be prepared in case the Avian Flu becomes a pandemic:
Based on what I saw on the Oprah Winfrey show about a month ago, the American economy, and infrastructure in general, would go completely into the toilet if this happens.
Here's some additional links:
Center for Disease Control Avian Influenza site
WGAL Bird Flu site
USA Today questions and answers about the bird flu