Thank you for the information.
I put together some links in #72.
Your comment:
“The old vaccine was known not to provide Full lifelong immunity. When the disease was circulating folks got periodic repeat vaccinations.”
Seems to be debate in the literature I found and on this thread as to the length of immunity.
I would be very interested to see if anyone has information about getting a reliable test done to determine individual immunity.
Pretty sure I had the old vaccine—not sure if I had repeat vaccinations—I only have one jab scar on my bicep. Given the political climate today, not sure I would want a new one...
Wouldn’t help most people alive today anyway. Routine vaccinations for smallpox stopped in the US in 1972. Most people under 50 never got a smallpox shot.
With no US cases since 1949 probably the only Americans getting repeat vaccinations the past 70 years were those traveling to where such was required until the general end in vaccination (1976?). US Military vaccination resumed for some and switched to the new vaccine when available, but I don’t know how widely that was done. Use of the new vaccine otherwise would be quite rare.
I seem to recall "booster shots" from my childhood but right now I can't remember what they were for.