Why do we Mexicans have a vaccine scar on our left arm?

It is very likely that you have some scar caused by some vaccine that was applied to your arm. Here we tell you what is the origin of these peculiar brands that we share the vast majority of Mexicans. Why are there people with a vaccine scar on their arm? If you were born after the 1950s, it is very likely that you have a brand generated by a vaccine. This can be derived from the tuberculosis vaccine or against smallpox, although the most common…