We know that viruses are non motile and cannot metabolise, and that it enters the host cells via binding to the receptors. But how exactly it reaches the host
(that is, how it go from the transmission medium (e.g. the aerosols) to actually make contact with the cells in the host)
If it rely on simply diffusion to bump into the host cells' receptors, what makes the odds high enough so that such proliferation strategy is efficient enough to ensure the virus to multiply and proliferate?
In addition, once it has released its DNA into the cell, what helps the DNA to reach the nucleus and not drifting randomly within the cell for a long time, that is, is there exist mechanisms or transportation pathways that actually guide the DNA from the perimeter of the cell through the cytoplasm in the middle and towards the area where the nucleus lie?