What diseases were brought to America by europeans?

* Smallpox was a highly contagious disease that killed millions of people worldwide. It was brought to the Americas by European colonists and quickly spread among the Native American population, who had no immunity to the disease. Smallpox epidemics devastated Native American communities and contributed to their decline.

* Measles is another highly contagious disease that can cause serious complications, such as pneumonia and encephalitis. It was also brought to the Americas by European colonists and spread rapidly among the Native American population. Measles epidemics caused widespread death and illness among Native Americans.

* Typhus is a bacterial disease that is spread by lice. It was common among European soldiers and colonists, and it was also introduced to the Americas. Typhus epidemics swept through Native American communities, causing high mortality rates.

* Yellow fever is a viral disease that is spread by mosquitoes. It is endemic to tropical regions of Africa and South America. Yellow fever was introduced to the Americas by European slave traders and quickly became a major public health problem. Yellow fever epidemics killed thousands of people in the Caribbean, South America, and North America.

* Malaria is a parasitic disease that is spread by mosquitoes. It is endemic to tropical and subtropical regions of the world. Malaria was introduced to the Americas by European colonists and became a major public health problem in the southern United States. Malaria epidemics caused high mortality rates among both Native Americans and European settlers.