Eucharistic Miracles
Eucharistic miracle is any miracle involving the **Eucharist**, regarding which the most prominent Christian denominations, especially the **Catholic Church**, teach that Christ is truly present in the Eucharist, which is by itself a Eucharistic miracle; however, this is to be distinguished from other manifestations of God. Eucharistic miracles are most known and emphasized within the context of the Catholic Church, which distinguishes between divine revelation, such as the Eucharist, and private revelation, such as Eucharistic miracles.
In general, reported Eucharistic miracles usually consist of unexplainable phenomena such as consecrated Hosts visibly transforming into **myocardium** tissue, being preserved for extremely long stretches of time, surviving being thrown into fire, bleeding, or even sustaining people for decades. In the Catholic Church, a special task-force or commission scientifically investigates supposed Eucharistic miracles before deciding whether they are "worthy of belief," in order to differentiate real Eucharistic miracles from cases of contamination by bacteria, such as *Neurospora crassa* or *Serratia marcescens*.