Only some viruses work this way, HIV is an example. This is a good article on endogenous retroviruses [1], that is viruses that work by integrating themselves i

Only some viruses work this way, HIV is an example. This is a good article on endogenous retroviruses [1], that is viruses that work by integrating themselves into host DNA (a retrovirus) and made it into germline cells (eggs and sperm, the endogenous part). [1] https://www.bbc.com/future/article/20230519-the-viruses-that-helped-to-make-you-human https://www.bbc.com/future/article/20230519-the-viruses-that...