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The Columbian Exchange was entailed millions of people dying from illnesses such as smallpox. Here I will be talking about the effect that smallpox had on the people of Mexico when it was introduced by Europeans.

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Millions of people dead due to contraction of smallpox.

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Smallpox was spread from person to person and was highly contagious. When one person contracted the illness, it was likely that those round them would also contract it. Since there was no germ theory, when one person was infected, there was no avoidance of them by others like there would be today based on what we know ("Smallpox", n.d.).

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Medical care was present during the time that smallpox was first introduced to Mexico. However, there was no vaccine for it and many did not know what was or how to treat it ("Hospitals in Mexico City in the 16th Century", 2018).

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The virus that causes smallpox is the variola virus. Those who fall ill of this virus experience high fever, body aches, and pustules on their skin ("Smallpox", n.d.).

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Mexico's geography was beneficial for its people before the Columbian Exchange as it was far from any smallpox outbreaks. However, once the Europeans came to Mexico and South America, the disease spread quickly killing at least a third of the population in the matter of a few months ("Columbian Exchange", 2019).