How was the time bomb of swine flu detonated?

(Agricultural Wealth Network) How was the "time bomb" of swine flu detonated?
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Is that how you reply?
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Hehehehehehe
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We are forced to face this strange cycle: disease - medication, vaccines - new disease - new drugs, vaccines. Humans advance one foot, while viruses advance ten; the battle between humans and the flood of viruses has stepped into the trap and peril of endlessly building higher flood dikes. Over time, the flood of viruses becomes like a suspended river, hanging high above human health, and one careless moment can bring catastrophic disaster.

Abuse of drugs and vaccines, and destruction of the environment, not only render medicine's efforts futile; this dike-building passive defense leaves people exhausted and still unsafe.


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In a certain sense, swine flu is actually just the detonation of a viral "time bomb" that humans themselves planted long ago.
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Now I understand
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Alright hahaha
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How did it come back again?
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Not bad hahahahaha
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I replied to them all