Quote:
The first child to be vaccinated in Russia was named Vaccinov.

Vaccinations are so named because the serum is made from processed Cowpox virus, and cow = vacca, and the fancy name for the disease is "vaccinia." (Smallpox in Variola. Can't tell you why.)

(And btw it wasn't scratched into the skin the way later generations did, but rather dropped into the eye. That's why it was called "inoculation against Smallpox.")