Similar to ILINet, Flu Trends produces estimates of Influenza-like Illness.

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Except for hospitalized patients, others with flu-like symptoms are not being tested to confirm they have swine flu, since "virtually all of the influenza that's circulating right now in the United States is the 2009 H1N1 strain, " Schuchat said.

CNN: Feds update H1N1 antivirals guidelines

Flavonoids and flu: Two plant-based flavonoids disease-fighting compounds found in many foods significantly impaired the infectious activity of H5N1 avian-flu virus in laboratory experiments and may form the basis of future influenza treatments, a report in Antiviral Research says.

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Efficacy here means that of the sample of people who came to the doctor with a flu-like illness, 62% of those who had been vaccinated did not have influenza.

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Already, some Southeastern states -- particularly Georgia, Alabama, Mississippi and Florida -- have been hit hard by the swine flu virus, also known as 2009 H1N1 influenza, perhaps because schools opened earlier there, she said.

CNN: Feds update H1N1 antivirals guidelines

The group remains quarantined at home, and Health Minister Tony Ryall said 10 students tested positive for influenza A -- the general category of strains that includes the H1N1 swine flu.

CNN: U.S. prepares for possible swine flu epidemic as global cases rise