Swine influenza (swine flu) is an acute viral infection of the respiratory tract in pigs caused by type A influenza virus.

猪流感是一种发生在猪身上的高度传染性急性呼吸道疾病，由A型流感病毒引起。

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First, let me clarify the difference between seasonal flu, avian flu, and human pandemic influenza.

首先，让我澄清季节性流感、禽流感与人类大流行性流感之间的区别。

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

FORBES: How Accurate Is Google Flu Trends?

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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