Scientists discover sheeppox virus DNA inside the parchment pages of a historic Anglo-Saxon book.
Researchers studying a 1,000-year-old Christian manuscript have uncovered genetic traces of an ancient pathogen within its historic pages, marking a significant discovery for historical science.
The study, conducted by University College Dublin, focused on the York Gospels, an artifact written in Canterbury by Anglo-Saxon scribes in the 10th century and preserved at York Minster, according to information published by dexerto.
By analyzing the manuscript, the team revealed that the parchment contained ancient DNA of the sheeppox virus, shedding new light on historical animal diseases and medieval manuscript production.
Tracing Sheeppox Virus in Medieval Manuscripts
The research team detected traces of the disease within the animal skins used to create the parchment for the York Gospels. Sheeppox is known to spread quickly and can prove deadly to young animals, though it is not believed to affect humans.
Interestingly, the animal skins tested belonged to calves or goats rather than sheep, pointing to possible cross-species infections or cross-contamination during the medieval parchment-making process.
Unlocking Ancient Pathogen Genomes
Lead author Louis L'Hôte noted that archives and libraries around the world likely contain hidden genetic traces of past animal disease outbreaks waiting to be discovered.
These ancient genomes help researchers understand how specific pathogens evolved over centuries and how they impacted past societies, including Eurasian sheep herds.
Evolution of Eurasian Sheep Herds
The research demonstrates that the sheeppox virus has been actively affecting Eurasian sheep herds for at least three and a half millennia, revealing remarkable persistence across historical eras.
According to Louis L'Hôte, the pathogen remains a modern threat, and analyzing its ancient DNA could provide crucial insights needed to help completely eradicate the disease today.
Frequently Asked Questions
What manuscript contained ancient disease DNA?
The York Gospels, a 1,000-year-old Christian manuscript written by Anglo-Saxon scribes, contained the DNA.
Which ancient disease was found in the book?
Scientists discovered genetic traces of the sheeppox virus within the parchment pages of the historic manuscript.
Who led the scientific study on the York Gospels?
The research was led by Louis L'Hôte from University College Dublin in collaboration with other academic researchers.
Why did the parchment contain sheeppox DNA?
The parchment was made from animal skins of calves or goats that likely experienced cross-species infections or contamination during production.


