In this 76th hour of the swine flu emergency, President Obama urges that we take "the utmost precautions." And the World Health Organization (WHO) has raised the pandemic flu alert level to 5 out of 6, warning that this international outbreak will pose a prolonged threat.
What do "utmost precautions" mean for all of us? What follows is a crib sheet on what we've learned so far about the swine flu, what we still don't know, and a few steps we...
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