prick the skin, inducing a localized infection that formed blisters and scabs, eventually leaving a small indentation upon healing.
The U.S. ended routine vaccination in 1972.
The smallpox vaccine was introduced to the general public, and the disease was declared eradicated globally in 1980—meaning that almost no one vaccinated after that time was left with this particular smallpox scar.
Having a scar does not mean you are still immune. Research has shown that immunity to smallpox begins to wane within 5–10 years of vaccination; therefore, a scar no longer
