There were no vaccines in the time of Jefferson.
{
The more formal experiments on the relationship between germ and disease were conducted by
Louis Pasteur between the years 1860 and 1864. He discovered the pathology of the puerperal fever
[30] and the pyogenic vibrio in the blood, and suggested using
boric acid to kill these microorganisms before and after confinement.
Pasteur further demonstrated between 1860 and 1864 that
fermentation and the growth of microorganisms in
nutrient broths did not proceed by spontaneous generation. He exposed freshly boiled broth to air in vessels that contained a filter to stop all particles passing through to the growth medium, and even with no filter at all, with air being admitted via a long tortuous tube that would not pass dust particles. Nothing grew in the broths: therefore the living organisms that grew in such broths came from outside, as spores on dust, rather than being generated within the broth.}
en.wikipedia.org
You fascists tend to augment your lack of knowledge by simply making shit up.