Globalization and disease Eurasian diseases to the Americas was that many more native peoples were killed by disease and germs than by the colonists' use of guns or other weapons. Scholars estimate that over a period of four centuries, epidemic diseases wiped out as much as 90 percent of the American indigenous populations. In Europe during the age of exploration, diseases such as smallpox, measles and tuberculosis (TB) had already been introduced centuries before through trade with Asia and Africa. People had developed some antibodies to these and other diseases from the Eurasian continent. When the Europeans traveled to new lands, they carried
Indigenous peoples of Mexico and Tzotzil Maya; Hidalgo with 36.21%, the majority being Otomi; Puebla with 35.28%, and Guerrero with 33.92%, mostly Nahua people and the states of San Luis Potosí and Veracruz both home to a population of 19% indigenous people, mostly from the Totonac, Nahua and Teenek (Huastec) groups. The majority of the indigenous population is concentrated in the central and southern states. According to the CDI, the states with the greatest percentage of indigenous population as of 2015 are: In 2011 a large scale mitochondrial sequencing in Mexican Americans revealed 85 to 90% of maternal mtDNA lineages are of Native American