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LET'S TALK ABOUT VIRUS.. EVENING TALK
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131 观看191:36:22benjaminthewiseguy5006原视频发布: 2026-06-03

Viruses are tiny infectious agents that can only reproduce inside living host cells by hijacking cellular machinery; they consist of genetic material (DNA or RNA), a protein capsid, and sometimes a lipid envelope. DNA viruses (like herpes simplex, hepatitis B) replicate in the cell nucleus and are generally more stable, while RNA viruses (like Ebola, influenza, SARS-CoV-2) replicate in the cytoplasm and are more prone to mutation due to their genetic instability. This fundamental difference explains why RNA viruses often cause more severe and rapidly evolving diseases, as they can quickly adapt and evade immune responses.

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