“Thanks to vaccines, the human life span has doubled in the last couple of hundred years.”
That would be ACTUAL vaccines. Everything in a syringe isn’t a vaccine. Comparing apples to oranges in medical science isn’t science. Ice cubes are in punch bowls. You don’t throw a turd in a punch bowl and call it ice — because it’s in a punch bowl.
By what scientific criteria do you conclude that the Covid-19 mRNA based vaccine is not a vaccine?
By scientific, I mean criteria that were developed by the scientists who actually study immunology and related fields. I very specifically exclude antivax charlatan "definitions" which have never been used by the scientific community.
There are tens of thousands of vaccines in existence. Although antivaxxers will tell you that a "real" vaccine complete prevents infectious disease (a "definition" that excludes all vaccines used in human and animal medicine), most vaccines have nothing to do with infectious disease.
In scientific usage, the purpose of a vaccine is to stimulate the immune system to produce a specific T-cell, B-cell, and antibody response to whatever is contained in the vaccine. Most of the time, we're not looking to protect against any disease--we simply want the antibodies to use in research.
The spike mRNA in the Covid vaccine is essentially the same as the spike mRNA that SARS-CoV-2 virus forces your body to produce during infection. Whether the mRNA comes from a vaccine or the virus, it has the function of directing the ribosome to make a spike protein molecule. This spike protein stimulates the immune system to make spike-specific T-cells, B-cells, and antibodies.
If you have a scientific (not antivaxxer) source for the claim that the Covid mRNA vaccine does not stimulate the production of anti-spike T-cells, B-cells, and antibodies, please provide it. Otherwise, as long as the Covid vaccine acts like a vaccine, I will continue to call it a vaccine.