I compare the use of normal and the new mRNA vaccines with each other and what effects they have on the pandemic. The world made a terrible mistake to rely on only one type of vaccine and didn’t calculate the risks doing that. But with the exclusive use of the mRNA vaccine, the population is constantly open for new infections and the chance that the pandemic will be gone is less likely. What is more likely is that the pandemic will rage for many years to come. If they had an alternative, like a normal vaccine, this would not happen.
According the theory and assumptions, when a population will have a herd immunity of 60%, it is enough protected that the number of new infections will be drastic reduced and assumingly the pandemic will disappear. Reaching this percentage means that the 60% of the population is vaccinated and/or immune after infection and recovery.
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.