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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Bacteria may be due to some complicated reasons, mad cow disease, foot and mouth disease, avian flu, swine flu, etc., so that the world's attention shifted to the green plant — the gift of nature.

也许是由于一些复杂病菌的原因，疯牛病、口蹄疫、禽流感、猪流感等等，让世人的目光转移到了植物——这个大自然的绿色恩赐。

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