flu flu

A nurse prepares a flu shot at the Salvation Army in Atlanta last month. The disease is still "widespread" in many places, but slowing. David Goldman/AP hide caption

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David Goldman/AP

For The Second Week, The Flu Epidemic Has Eased

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A doctor and nurse confer inside a room used for flu patients at Northside Hospital in Cumming, Ga. The U.S. government's latest flu report, released Friday, showed flu season continued to intensify, with high volumes of flu-related patient traffic in 42 states, up from 39 the week before. Robert Ray/AP hide caption

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Robert Ray/AP

The Centers for Disease Control and Prevention changed the topic of a nuclear strike preparedness session, opting to focus on a widespread flu outbreak. Kevin C. Cox/Getty Images hide caption

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Kevin C. Cox/Getty Images

As flu cases mount in California, the state's health department recommends vaccination for all people 6 months and older. Daniel Acker/Bloomberg via Getty Images hide caption

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Daniel Acker/Bloomberg via Getty Images

Australia had a particularly hard flu season this year, which may predict similar challenges for the U.S. Pascal Pochard-Casabianca/AFP/Getty Images hide caption

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Pascal Pochard-Casabianca/AFP/Getty Images

In The U.S., Flu Season Could Be Unusually Harsh This Year

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Police tape blocks off a street where a 16-year-old was shot and killed and another 18-year-old was shot and wounded on the on April 25 in Chicago. Joshua Lott/Getty Images hide caption

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Joshua Lott/Getty Images

For Stopping A Pandemic Of Gun Violence, Let's Look To The Flu

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This year's flu vaccine protects against a few different virus strains, including the H1N1 seen here. The fuzzy outer layer is made of proteins that allow the virus to attach to human cells. NIAID/Flickr hide caption

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NIAID/Flickr

Inside Each Flu Shot, Months Of Virus Tracking And Predictions

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A blood test developed by Harvard researchers checks for evidence of past infection with more than a thousand strains of virus, from about 200 virus families. The swine flu virus shown here, A/CA/4/09, rarely infects humans. C. S. Goldsmith/CDC hide caption

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C. S. Goldsmith/CDC

How Many Viruses Have Infected You?

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