It would take a million years for a commoner to figure out what a vaccine is, but for a molecular biology PHD (doctor), it is just another task or another work day in the lab. Finding or discovering it is not the hard part. The hard part is to ensure that it has at least 90% efficacy, or in other words the vaccine has to succeed in something like 90% in a pool of a number of tested people, or whatever percentage that is required by the FDA nowaday.
So for a commoner like a shortie working at CITRON, it would take him or her a million years to figure out how to spell the word "vaccine" . For a molecular biology PHD, it is just another day in the lab.
I know it because I myself used to work in a molecular biology laboratory many years ago.