Burials from a 17th century hospital in Basel offer a close look at who faced the highest risk during one of the city’s last plague outbreaks. The graves date to around 1665 to 1670, a period when plague returned to the region. Researchers combined skeletal analysis, ancient DNA testing, and historical records to piece together the lives of those who died.
The cemetery formed at a former monastery used as a hospital during the epidemic. Fifteen individuals were buried in closely spaced graves, all within a short time. Laboratory work identified DNA from Yersinia pestis in several of the remains. This confirms plague as the cause of death. A stamped clay pipe found in one grave helped narrow the date and link the burials to a known outbreak in 1667 or 1668.
The people buried there were mostly young. The average age at death was under 18. Many of the skeletons show signs of long periods of physical strain. Joint wear, bone changes, and other markers point to heavy labor at an early age. Some also show signs of poor health before death, including stress markers linked to diet and illness. These patterns suggest the group came from lower social levels and had worked hard for survival.
Historical records from the city and its hospital support this picture. Basel depended on trade, and city authorities often kept gates open during outbreaks. Movement of goods and people continued, which helped the disease spread. At the same time, poorer residents had little choice but to keep working. Daily income was necessary for food and shelter. This increased exposure to infection.
The study also points to differences within the lower classes. Not everyone had the same access to care or support. Family networks often played a central role in treatment and recovery. Those without strong ties or social standing faced added risk. Citizenship status and local reputation could shape access to help. These factors influenced who received care and who did not.
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Stable isotope analysis adds more detail about diet and living conditions. The results indicate uneven access to food resources. Some individuals show signs of nutritional stress over time. Poor diet weakens the body and affects the ability to recover from disease. This would have made infection more severe for some members of the group.
The findings align with patterns seen in recent pandemics. Social and economic conditions shape exposure, health, and survival. In Basel, young workers carried a heavy burden during the outbreak. Their lives ended early, and their remains preserve clear signs of hardship.
This case shows how archaeology and historical data work together to reveal daily realities behind large events. The graves reflect more than a disease outbreak. They record how work, diet, and social ties shaped the chances of survival during a crisis.
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