Researchers have been determined to figure out how bird flu spreads from human to human worldwide.

研究人员下决心要弄清楚禽流感在全球范围内是如何在人与人之间传播的。

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If you've got a new development in medicine, for example, bird flu, then you'll get a new word coming out of that.

如果你在医学上有了新的发展，比如禽流感，你就会从中得到一个新词。

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Flu usually breaks out in winter.

流感通常发生在冬季。

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But public health officials point out that flu viruses can return more aggressively after a few months.

VOA: special.2009.05.06

Gary Nabel of the U.S. Vaccine Research Center points out that his universal flu vaccine would have another benefit.

VOA: standard.2010.07.21

But enter "swine flu parties" in an Internet search, and you will see, the idea is out there.

VOA: standard.2009.12.18

In a future artistic interpretation of this project, I imagine Puxian will liken the Protector to the American border, and our desire to shut out Mexico when swine flu broke out there.

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Others shared Paul's sentiment, saying the fear of the flu has gotten out of hand.

CNN: Hysteria over swine flu is the real danger, some say

Some doctors paint a scary worst-case scenario: A flu pandemic breaks out and beats down the immune systems of millions of people, and then staphylococci--the hospital strain and the nastier variant in the community--run wild on a killing spree.

FORBES: Germ Warfare