What diseases did the Spanish conquistadors bring to the Americas, and how did they affect the indigenous populations?

What diseases did the Spanish conquistadors bring to the Americas, and how did they affect the indigenous populations?

The Spanish conquistadors brought diseases such as smallpox, measles, influenza, and typhus to the Americas. These diseases had a devastating impact on the indigenous populations, who had no immunity to them. The diseases spread rapidly and caused widespread death and suffering among the indigenous people. It is estimated that millions of indigenous people died as a result of these diseases, leading to a significant decline in their population and altering the course of history in the Americas.