Roch or Rocco was a Catholic saint, a confessor whose death is commemorated on 16 August and 9 September in Italy; he is specially invoked against the plague. Wikipedia
The plague disappeared everywhere he went.
According to the Catholic Encyclopedia, he “devoted himself to the plague-stricken, curing them with the sign of the cross. He next visited Cesena and other neighboring cities and then Rome. Everywhere the terrible scourge disappeared before his miraculous power.”
He eventually contracted the plague himself, but after retreating to the forest, he was also cured from the disease.
After his death, St. Roch’s intercession was invoked when a plague struck Germany in the 15th century.
PRAYER TO SAN ROQUE
(Patron Saint of Plague & Disease)O Blessed St Roch, Patron of the sick, have pity on those who lie upon a bed of suffering.
Your power was so great when you were in this world, that by the sign of the Cross, many were healed of their diseases.
Now that you are in heaven, your power is no less. Offer to God our sighs and tears and obtain for us the physical and spiritual health we seek:
(Share your request…)
This we ask through Jesus Christ our Lord. Amen.
St Roch: Pray for us, that we may be relieved from all diseases of body and soul. (Repeat 3 times)
Lord Jesus, may thy will be done.
Say: Our Father… Hail Mary… Glory be…
… St Roch, Pray for Us …
