How does the vaccinator work?
Find a un-used mouth swab in virlogy (usually in a mouth swab box)
Hold them and click on a diseased crew
After swabbing the diseased crew, return to virology
Click the vaccinator with swab
And vaccinator will print out a vaccine
Note: You can swab the diesesed crew multiple times with multiple un-used swabs to make more vaccines, though vaccines will not cure disease, it will prevent un-diseased crew from getting the diesease
(Doesnt work on zombie outbreak btw, make romerol if zombie is real)