Eucharistic miracle
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A Eucharistic miracle is any miracle involving the Eucharist, regarding which the most prominent Christian denominations, especially the Roman Catholic Church, teach that Christ is truly present in th
Sacrarium of the Eucharistic miracle of Lanciano; it is believed that the upper portion contains the heart tissue, while the lower receptacle contains the pellets of clotted blood.
The Sanctuary of the Most Holy Miracle in Santarém, Portugal
Eucharistic miracle of Bolsena in a reliquary made by Ugolino di Vieri
Serratia marcescens growing on a piece of bread
Serratia marcescens
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Serratia marcescens is a species of rod-shaped, Gram-negative bacteria in the family Yersiniaceae. It is a facultative anaerobe and an opportunistic pathogen in humans. It was discovered in 1819 by Ba
Eucharistic miracle
…In order to differentiate the claimed Eucharistic miracles from cases of contamination by red colored microorganisms, such as Neurospora crassa or Serratia marcescens. A 2025 forensic study by Polish scientists of 25 reported Eucharistic miracle cases found no evidence of human blood or human tissue other than isolated…
Serratia marcescens
The antibiogram of S. marcescens on Mueller–Hinton agar