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The small round scar on the upper arm is the scar from being vaccinated for small pox. Before 1970s, this smallpox vaccine was common. It used live Vaccinia virus in order to trigger an immune response that would protect people against the dangerous Variola virus that caused smallpox. After the ...
Read More »Do You Know the Truth Behind The Small Scar On The Upper Left Arm and Its Real Meaning?
