Green tea catechin and theaflavin, which are both present in black tea, have a strong effect on the flu virus.

绿茶儿茶酚，跟红茶里含有的一样，都对流行性病毒有很强的影响。

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If the innards of each pig are Petri dishes, then possible pandemic flu viruses have been stewing on hog farms for decades.

如果每头猪的内脏都是培养皿，那么可能的大流行性流感病毒已经在养猪场熬了几十年了。

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The outbreak of swine flu that was first deteccted in Mexico was declared a global epidemic on June 11, 2009.

2009年6月11日，墨西哥首次爆发的猪流感被宣布为全球流行病。

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They were barred from leaving their rooms because someone on their flight was suspected of having the flu.

VOA: special.2009.07.14

Scientists also completed similar research on victims of the Spanish flu epidemic in nineteen eighteen.

VOA: special.2010.06.29

Next on the list was the H1N1 virus, also known as swine flu.

VOA: special.2010.01.02

Other tourism-related stocks in Hong Kong also fell sharply on the flu concerns, with China Travel International Investment Hong Kong Ltd.

WSJ: Bird Flu Worries Sink Airline Shares

They were already researching using Twitter to track health issues before this winter's recent outbreak but quickly changed tracks to focus on the flu.

CNN: Tracking the flu with technology and Twitter

In 2003, the aging autocrat collapsed while delivering a televised speech to the Egyptian parliament -- returning later to blame his illness on the flu.

CNN: For Mubarak, once Egypt's strongman, a long fall from grace