Cause and Effect After Europeans arrived in the Americas, how did epidemics destroy much of the American Indian population?

After they had arrived, Europeans brought deadly viruses and bacteria, such as smallpox, measles, typhus, and cholera, for which Americans had no immunity (Denevan, 1976).

THEY DESTROYED MUCH BECAUSE THEY DID NOT KNOW HOW TO CURE THE INFECTIONS LOOK UP TO DOUBLE CHECK

Explanation:

the invasive species was introduced due to commercial purpouses, as there was a demand for fur clothes and hence, a business opportunity connected to this product. actually, it was when the nutrias scaped, causing harm to the us ecosystems when they acquired the status of invasive species. in this case they have caused an environmental problem, but it could have affected also economic interests or even human health.