Plague burial discovered in Barcelona

Spain in the 14th century was one of the countries hardest hit by the Black Plague, yet no burial of plague victims had been discovered, until now. Recently archaeologists working on the Basilica of Sant Just i Pastor in Barcelona unearthed a burial of 120 bodies "packed like sardines" under the sacristy.

The remains were methodically buried and covered in quicklime. DNA testing of teeth shows evidence of "the presence of Yersinia pestis, a bacterium associated with rats and other rodents that was transmitted by the parasites they carried, particularly fleas, which injected it into humans when they bit them," often an indicator of the spread of the disease.