Coronavirus Sparks History Lesson In Mexico As Citizens Learn About Cocoliztli
Mexico is struggling to combat the effects of the global Coronavirus pandemic. So far, the country has almost 25,000 confirmed cases and nearly 3,000 deaths, with the worst still expected to come. With the country confronting one pandemic, it’s been forced to look back into history at another pandemic of epic proportions some 500 years ago.
We all know that the arrival of the Spaniards to the Americas brought disease and famine that left millions of Native Americans dead. However, one epidemic in particular has always mystified both modern-day scientists and Indigenous cultures that survive to this day.
During the 16th century, Mexico suffered a demographic catastrophe with few parallels in world’s history. In 1519, the year of the arrival of the Spaniards, the population in Mexico was estimated to be between 15 and 30 million inhabitants. Eighty-one years later, in 1600, only two million remained.
Cocolitzli was a massive epidemic that killed millions of Indigenous Mexicans – particularly the Azteca – shortly after the arrival of the Spanish.
From 1545 to 1550, Aztecs in what is today southern Mexico experienced a deadly outbreak. Anywhere from five to 15 million people died. Locally, it was known as cocoliztli, but the exact cause or causes has been a mystery for the past 500 years.
Based on the death toll, this outbreak is often referred to as the worst disease epidemic in the history of Mexico. Subsequent outbreaks continued to baffle both Spanish and native doctors, with little consensus among modern researchers on the cause.
It’s long been accepted that Europeans brought with them smallpox and other contagious diseases that wiped out Native populations. In fact, before the cocolitzli outbreak, smallpox killed an estimated eight million Indigenous Mexicans in just over a year.
What did this cocolitzli outbreak look like across the country?
The outbreak started in 1545 when disaster struck the Aztec nation. The disease had a very short course, lasting three to five days. It started abruptly with high fever, vertigo, severe headache, insatiable thirst, red eyes and weak pulse. Patients became intensely jaundiced, very anxious, and restless. Subsequently, hard painful nodules appeared behind one or both ears, sometimes so large that they occupied the entire neck and half of the face.
Within five years as many as 15 million people – an estimated 80% of the population – were wiped out in an epidemic the locals named “cocoliztli”. The word means pestilence in the Aztec Nahuatl language. Its cause, however, has been questioned for nearly 500 years.
Scientists have tried to identify the cause of the epidemic and it turns out it might have been from a common type of bacteria.
According to study author Åshild Vågene from the Max Planck Institute, the strain is a bacterial infection that causes a type of enteric fever nearly identical to typhoid. While that specific strain of salmonella is much rarer today, Vågene says it would have spread similarly. Any food or water contaminated with the strain would have turned deadly once ingested.
Salmonella enterica—subset Paratyphi C to be exact—was present in the DNA of ten different individuals buried at the only known burial site, Teposcolula-Yucundaa, associated with cocoliztli.
Historians and archaeologists have long suspected that a blood-borne illness was responsible for cocoliztli. Depictions by both Spanish and indigenous artists show the infected with nose bleeds and coughing up blood.
“This is one of the diseases that doesn’t leave any visible clues on the skeleton,” Vågene told National Geographic, adding that very few diseases do.
The epidemic has many worried about Covid-19’s effects on today’s Indigenous communities.
It’s difficult to say why the cocoliztli was so deadly for the Indigenous community, but they may also have been suffering from malnourishment as a result of a great drought that afflicted the region at the time.
If the bug wasn’t present in the Americas before European arrival, the locals may have lacked a strong natural immune response to the disease and made them more susceptible. Whatever the pathogen, it swept through the region like a storm. At the time, historian Fray Juan de Torquemada wrote, “In the year 1576, a great mortality and pestilence that lasted for more than a year overcame the Indians … the place we know as New Spain was left almost empty.”
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