Some bacteriophages inject their genomes into bacterial cells (to not scale) Viral populations will not increase as a result of cell division, because they are acellular. This is known as DNA chain termination.[171] Samples of nucleoside analogues are aciclovir for Herpes simplex virus bacterial infections and lamivudine for HIV https://www.youtube.com/watch?v=LKq37PVD3JQ