Evidence that viruses exist
Viruses exist and have been extensively documented through multiple independent lines of evidence over more than a century. They are obligate intracellular parasites—tiny particles (typically 20–400 nm) consisting of genetic material (DNA or RNA) in a protein coat, sometimes with a lipid envelope—that replicate by hijacking host cells.<grok:render card_id="91df68" card_type="citation_card" type="render_inline_citation"><argument name="citation_id">34</argument></grok:render><grok:render card_id=...
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