The looming danger of the rapidly spreading pandemic: mutations
When a host cell is infected (penetrated) by the coronavirus, the virus duplicates itself in about 12 hours (with the help of the host cell). The new virus particles duplicate itself again the next cycle. With one virus particle, you will have 2, 4, 16, 256, 65536, 4294967296, etc. virus particles. When there is no place in the cell for so many virus particles, they will be booted out of the cell and the host, and those will be used to infect other hosts, like you and I.