In St. Hyacinth’s church in Legnica, during Holy Mass, on December 25, 2013, a Host accidentally fell on the ground, during the distribution of Communion. It was immediately placed in a container with water and closed in the tabernacle.
St. Hyacinth’s priest, Father Andrzej Ziombra, said that on January 4th, along with other priests, he went to see if the consecrated Host had dissolved in the water after nearly two weeks: "Immediately we noticed that the Host had not dissolved, and that a red spot covering a fifth of Its surface appeared.
We decided to inform the Bishop, who established a special theological scientific commission to analyze the event. We noticed that over time the stain on the Host changed color from deep red to red brown (...).
The sample was taken directly by the scientists on 26 January 2014. For the priests the miracle was evident. The commission checked if It was some fungus, mold or another external agent (...). The Wrocław Forensic Medicine Institute immediately excluded the presence of bacteria or fungi as a cause for the Host turning red. A second histopathological analysis pointed out that some fragments seemed to belong to myocardial tissue.