1/10/2024 0 Comments Disease Infected: Plague free![]() Europeans carried such endemic diseases when they migrated and explored the New World. As a result of chronic exposure, many infections became endemic within their societies over time, so that surviving Europeans gradually developed some acquired immunity, although they were still subject to pandemics and epidemics. For more than 1,000 years travelers brought goods and infectious diseases from the East, where some of the latter had jumped from animals to humans. But repeated warfare by invading populations spread infectious disease throughout the continent, as did trade, including the Silk Road. Eurasian infections and epidemics had major effects on Native American life in the colonial period and nineteenth century, especially.Įurasia was a crossroads among many distant, different peoples separated by hundreds, if not thousands, of miles. The American era of limited infectious disease ended with the arrival of Europeans in the Americas and the Columbian exchange of microorganisms, including those that cause human diseases. Aside from that, most of the major infectious diseases known today originated in the Old World (Africa, Asia, and Europe). One notable infectious disease of American origin is syphilis. Although a variety of infectious diseases existed in the Americas in pre-Columbian times, the limited size of the populations, smaller number of domesticated animals with zoonotic diseases, and limited interactions between those populations (as compared to areas of Europe and Asia) hampered the transmission of communicable diseases. ![]()
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