Most smallpox scars are there, but some people were vaccinated in other places. Check your records. Smallpox vaccines were virtually universal during the 60s.
I'm not making light of smallpox, but I do want to say that it does not always leave a person terribly disfigured. I am struck, when reading biographies or histories, with just how many famous people were infected by smallpox, and the wide range of responses these famous victims displayed. Charles II had smallpox, and he apparently was left unscarred , and that's true of other famous smallpox sufferers-some were left entirely unscathed. Fanny Kemble, the famous 19th century actress, was left unscarred and smoothskinned, but her complexion was robbed of its translucence and left with the sallow, muddy, 'thickened' look associated with an older woman who'd had children.( She was still a teen, and had no children.) Other victims were left with only a few scars to hide, and that's how the 18th century fad for black velvet patches started. And some, like Mirabeau, the Duke of Anjou , and one of Marie Antoinette's sisters, were left terribly disfigured. It's not a given that every single infected person will get the absolute worst end result. I do not know what link there might be between those who got off light, and any exposure they might have had to cowpox, but I thought cowpox exposure would have left them totally immune.(???)
That said, I hope steps are being taken to get the vaccine available. And given that smallpox was not eradicated from the third world, and given post 1965 emigration policies, I do not understand why the post 1971 babies were left vulnerable.