Not only do COVID-19 vaccines do a ‘fairly good’ job, it is also important to establish that no two vaccines or pathogens are the same, and the immune protection they generate cannot be compared properly. For one, the threshold of protection, or the immunity needed to keep a person from getting sick, varies greatly from every pathogen, and the severity of the infection may be due to this. For this reason, it may be considered possible to mount a comparatively short-lasting, or dwindling, response to COVID-19 vaccines.
It could also mean that we need to wait longer to get ‘ideal’ results from our COVID-19 vaccines. In addition, it should also be noted that the amount of antibodies, the immune responses seen with other vaccines, matters. If the measles shot mounts lifetime antibodies, the tetanus vaccine may contain attenuated antibodies, which, however, are offset by the large number of antibodies created in the first place. These vaccines have gone through years, and years, of progress and research to help track antibody degradation, and provide updates when needed, which just isn’t possible with COVID-19.
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