A peer-reviewed genetic analysis of the Shroud of Turin has identified a rare DNA lineage tied to the ancient Near East and salt-loving microbes consistent with a Dead Sea environment, findings the Vatican says support the burial cloth's authenticity.
The study, published July 9 in the journal Scientific Reports, examined 12 linen fiber samples removed from the Shroud during a 1978 investigation and never previously subjected to genomic analysis. Led by Dr. Gianni Barcaccia, a professor of genetics and genomics at the University of Padua in Italy, the research team used next-generation sequencing, technology capable of searching millions of genetic fragments simultaneously, to catalog the biological material embedded in the cloth.
Among the findings: the rare H33 maternal DNA lineage, found today primarily in Near Eastern populations, especially among the Druze people of Lebanon, Syria, Jordan, and Israel. The researchers also detected archaea, salt-loving microorganisms associated with highly saline environments, along with skin microbes, fungi, plant DNA, animal traces, and Mediterranean coral.
Vatican News seized on the results. In a statement, the Vatican's media arm said the findings "seem to confirm a sojourn of the Shroud in the Middle East and in a saline environment, such as near the Dead Sea, adding another piece to the mosaic of scientific evidence supporting the Shroud's authenticity."
That is a strong claim, and the study's own authors did not go nearly that far.
The 14-foot linen cloth, believed by millions of Christians to be the burial shroud of Jesus Christ, has been housed inside the Cathedral of Saint John the Baptist in Turin, Italy, for centuries. Its first documented public appearance dates to the 1350s, when a French knight named Geoffroi de Charny put it on display in Lirey, France. How he acquired the cloth remains unknown.
Radiocarbon dating conducted in the 1980s pointed to a medieval origin, a conclusion that has divided researchers and believers ever since. The new 2026 study attempted to approach the question from a different angle, not by dating the cloth directly, but by cataloging every biological trace left on it over the centuries.
The results were a mix of tantalizing clues and stubborn ambiguity. The H33 lineage detection is significant because that genetic marker is concentrated in populations with deep roots in the Levant, the broader region encompassing modern-day Israel, Palestine, Lebanon, and Syria. The study noted that "the Druze population shares a common genetic ancestry with Jews and Cypriots, and has historically intermingled with other Levantine populations, including Palestinians and Syrians."
But the researchers also found extensive modern contamination. A maternal DNA lineage frequently found among Ashkenazi Jews turned up as the dominant signal in three of the Shroud samples, and the team attributed it not to an ancient source but to Professor Pierluigi Baima Bollone, the scientist who collected the samples in 1978. His handling of the fibers left his own genetic fingerprint all over them.
Protein testing found no ancient biological material. That absence matters. If the cloth had wrapped a body two millennia ago, ancient proteins might reasonably be expected, though centuries of handling, repair, and environmental exposure could explain their degradation.
The plant DNA results added another layer of complexity. Fox News reported that carrot DNA was the most prominent plant signal, accounting for 30.9 percent of identified plant sequences, followed by bread wheat at 11.6 percent. The strongest plant signal came from carrot varieties resembling European cultivars developed during the 1400s and 1500s, well after the time of Christ.
More problematic for authenticity claims: researchers identified DNA from maize, tomatoes, peppers, potatoes, and peanuts. All of these are New World crops that reached Europe only after Columbus crossed the Atlantic in 1492. Their presence on the Shroud is evidence of contamination during the centuries the cloth has been handled, displayed, and stored in European settings.
No plant species exclusive to the Levant was found. The researchers noted an absence of flora typical of the Middle East, a gap that cuts against the narrative of a cloth that spent its early centuries in the Holy Land.
An earlier study, published in 2015 by a team that included Barcaccia's group, had uncovered DNA from at least 19 plant species and mitochondrial lineages attributed to at least 14 people. In that analysis, 55.6 percent of classified human DNA sequences corresponded to Near Eastern lineages, while 38.7 percent corresponded to Indian lineages. The Daily Mail noted that those figures describe the proportion of classified DNA sequences, not the percentage of people who handled the cloth or the ancestry of the Shroud itself.
One finding from the 2026 study may interest those who have long questioned the 1980s radiocarbon results. When the team radiocarbon-dated two loose threads from the Shroud, the results reflected documented repairs rather than the age of the original fabric. If confirmed by further testing, that finding would suggest the medieval date assigned to the Shroud decades ago may have been drawn from patched material, not the linen at the cloth's core.
That possibility has been raised by Shroud researchers before, and it remains contested. But it is a legitimate scientific question, and the 2026 study adds new data to the debate.
Even so, the researchers themselves were careful not to overstate their conclusions. The study's authors wrote that the evidence "cannot establish whether the Shroud was created in medieval Europe or dates back approximately 2,000 years" and does not prove its connection to Jesus. They framed their work as a contribution to understanding the cloth's biological history, not as a verdict on its authenticity. As the study authors stated, their findings "constitute a novel and significant contribution to the field, thoroughly elucidating the biological traces left by centuries of social, cultural and ecological engagement."
For believers, the detection of Near Eastern DNA and Dead Sea microbes will feel like vindication, evidence that the Shroud spent time in the region where Scripture places the burial of Christ. For skeptics, the extensive modern contamination, the absence of ancient proteins, the New World crop DNA, and the lack of Levantine plant species will reinforce doubts.
The Vatican's response is worth examining on its own terms. Vatican News described the findings as supporting the Shroud's authenticity, a characterization that goes beyond what the peer-reviewed paper concluded. The researchers said their methodology "cannot robustly support either a medieval or 2,000-year-old origin." The Vatican's statement cherry-picked the Near Eastern genetic traces and the saline microorganisms while passing over the contamination evidence, the absence of ancient proteins, and the New World crop DNA.
That selective framing is not unusual for institutions with a stake in a particular outcome. But it is worth flagging for readers who encounter headlines suggesting science has now "confirmed" or "corroborated" the Shroud's connection to the resurrection. The study did no such thing. It found biological traces consistent with the cloth having spent time in the Near East at some point in its history. It also found biological traces consistent with centuries of European handling and contamination.
The Shroud of Turin remains one of the most studied and debated artifacts in the world. Faith and science have circled each other around this 14-foot piece of linen for decades, and the 2026 study, for all its sophisticated technology, has not broken the stalemate. It has added data points on both sides of the ledger. Honest inquiry, whether from a laboratory or a cathedral, should welcome that complexity rather than flatten it into a talking point.
Open questions remain. The study does not address whether the H33 lineage was present in the Levant two thousand years ago in the same distribution it shows today. The storage conditions of the 12 samples between 1978 and 2026, nearly half a century, are not detailed. And the radiocarbon findings on the loose threads, while suggestive, need independent replication before they can overturn the earlier medieval dating.
Science that asks hard questions about sacred objects deserves respect, not spin. The researchers at the University of Padua did careful, peer-reviewed work and stated their limits honestly. The institutions racing to claim the results as proof of something the authors never claimed would do well to follow that example.
