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In July 1520, Spanish conquistador Hern谩n Cort茅s fled Tenochtitlan, the capital of the then-sprawling Aztec Empire, in the midst of a popular revolt against his puppet emperor, Moctezuma II. Thousands of people died in the violence, and bodies purportedly filled the city鈥檚 streets and waterways.

Around the same time, the region faced a second threat: An epidemic of smallpox that European colonists helped to spread throughout Mesoamerica鈥攕howing how Old World violence and diseases combined to decimate the Indigenous population.

On its surface, the 500-year-old epidemic doesn鈥檛 seem like it would have a lot in common with the COVID-19 cases currently raging around the globe. But 精品SM在线影片 archaeologist Gerardo Guti茅rrez sees a lot of parallels. The coronavirus pandemic, like smallpox epidemics before it, has taken the most brutal toll on communities that are already vulnerable because of war, poverty, racism and more.

鈥淭he history of pandemics is also the history of political change,鈥� said Guti茅rrez, an associate professor in the Department of Anthropology. 鈥淧andemics have often been the straw that broke the camel鈥檚 back for societies that were already having troubles.鈥�

Now, he and colleague Catherine Cameron are diving deep into that history. In a paper , the team draws on case studies from the Colonial Era to take a new look at the archaeology of disease. The researchers argue that epidemics are more than just biological phenomena鈥攖hey鈥檙e also intrinsically tied to the broader welfare of human societies.听

The findings, Guti茅rrez and Cameron said, highlight how important it is for social scientists to get involved in studying pandemics.

鈥淲e鈥檝e seen real problems with how people of color and minorities are treated during pandemics,鈥� said Cameron, a professor of anthropology at 精品SM在线影片. 鈥淭hat鈥檚 something that needs to be recognized.鈥�

Virgin soil

As Cort茅s was waging war with Tenochtitlan, the world was experiencing one of the most profound shifts in human history. Expanding trade routes for silver, silks, animal skins and more tied Europe to the New World, Asia and Africa in ways that had never been seen before.

鈥淭he planet is really connected for the first time,鈥� Guti茅rrez said. 鈥淏ut those connections don鈥檛 just come down to trade and money. We also see the global connection of pathogens.鈥�

The consequences for the Americas were severe: Estimates suggest that war, colonialism, smallpox and many other diseases may have killed large portions of the population of North and South America鈥攁mounting to millions of people, and entire civilizations, gone during the three centuries of colonial rule.

Many researchers have traditionally explained this catastrophic loss of life through something called the 鈥渧irgin soil鈥� hypothesis. Indigenous peoples in the Americas, proponents say, died in such high numbers from diseases like smallpox because their immune systems hadn鈥檛 encountered those viruses and bacteria before.

But that explanation is incorrect, Guti茅rrez said, and tends to let Europeans off the hook.听

鈥淭he virgin soil hypothesis only addresses the biological part of those epidemics,鈥� he said. 鈥淚t leaves out all of the social components that were occurring at the same time.鈥�

Structural violence

In other words, human actions can shape the course of a disease just as much as biology.

Cameron is an archaeologist who studies the lives of Indigenous people in North America. She explained that these communities experienced shock after shock in the 17th and 18th centuries: Settlers from England, France, Holland and other nations removed Indigenous groups from their traditional territories and forced many thousands of Native Americans into slavery. In some cases, newcomers from overseas encouraged fighting between native groups, leading to conflicts like the Fox Wars in the early 1700s.

Native Americans didn鈥檛 have weak immune systems, Cameron said. But the added burden of warfare, malnutrition and the destruction of communities and caregivers made the death toll much worse.

鈥淚n any population affected by disease, numbers will eventually rebound,鈥� she said. 鈥淭hat鈥檚 what happened with the plague in Europe. But Native Americans never had that opportunity because they were being hounded, pushed out of their lands, enslaved and killed in wars.鈥�

She added that there鈥檚 a lesson in that history for today鈥檚 pandemic. This year, Black and Latino people have been roughly twice as likely to die from COVID-19 as White Americans, even though they experienced similar rates of infections. The coronavirus has also run rampant through modern-day Native American communities like the Navajo Nation.

鈥淭he structural violence that affected Native Americans during the colonial era is still continuing today,鈥� Cameron said. 鈥淭he tribes have been some of the hardest hit by COVID.鈥�

Guti茅rrez noted that the archaeology of past epidemics shows that medicine can only do so much to fight viruses and bacteria. To combat pandemics, nations also need to address the social factors that put already vulnerable groups in the crosshairs of infection.

鈥淲e tend to think that the hard sciences and technology are going to rescue us from all of our toils and troubles,鈥� he said. 鈥淭he reality is that, yes, they are a key element in fighting pandemics, but they will never work if we can鈥檛 find the political commitment to adapt our social institutions to these challenges.鈥�