Have you ever wondered what that small scar on the upper left arm is?
You might have seen it on some people, or you might even have it. Well, it is from being vaccinated for smallpox.
Smallpox is a viral, infectious disease that once terrorized us humans. It causes a significant skin rash and fever and ki.l.l3d about 3 out of 10 victims during the most rampant outbreaks in the 20th century, according to the Centers for Disease Control and Prevention. Many other sufferers were left disfigured.
Thanks to the successful and widespread implementation of the smallpox vaccine, the virus was declared “extinct” in the United States in 1952. In fact, in 1972, smallpox vaccines ceased to be a part of routine vaccinations.
However, until the early 1970s, all children were vaccinated against smallpox, and the vaccinations left behind a very clear mark. Think of it as the very first vaccine passport, if you will: a scar that told everyone you had been successfully vaccinated against smallpox.
Why did the smallpox vaccine scar?
The smallpox vaccine caused scars due to the body’s healing process. The vaccine itself was delivered in a rather different way from many other vaccines today, using a special two-pronged needle.
The person administering the vaccine made multiple punctures in the skin (rather than just the one you usually get with today’s vaccines) to deliver the vaccine to the skin’s dermis (the layer below the epidermis).
The virus within the vaccine then got to work, multiplying and causing round bumps to develop. The bumps then developed into vesicles (small, fluid-filled blisters), which would then burst and scab over in time.
The result is the infamous scar we’ve talked about in this article.
Are you old enough to have a scar from the smallpox vaccine?
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