西元 2020 年，新冠肺炎（COVID–19）的肆虐，勾起了人類過去面對瘟疫時的恐懼。儘管現代醫學發達，仍有眾多人口死於這場大型流行病中。「人們不再知曉該求助於哪位聖人」，這句義大利特有的俗語指出了古老教會傳統的重要，即信徒在日常生活中若有心靈上的需要，便會尋求相對應的主保聖人，以獲得庇佑守護。
聖洛克的聖髑目前存放於義大利威尼斯一座供奉他的教堂中，而毗鄰該座教堂的聖洛克大會堂（Scuola Grande di San Rocco），其內部的繪畫是由風格主義時期（Mannerism）的威尼斯畫派畫家雅科波．羅布斯蒂（Jacopo Robusti, 1518/19–1594）進行裝飾。羅布斯蒂又以丁托列托 （Tintoretto）之名更為人所熟知。
During 2020, the year characterized by the Covid-19 pandemic, many remembered the plagues humanity endured in the past. During an epidemic in which so many people die despite medical advances, "you no longer know which saint to turn to." This verbal expression from the Italian language indicates an ancient tradition in the church, that of the patron saints the faithful rely on and ask for help from various life situations.
Among the various "anti-plague" saints, the most famous and most invoked is Saint Roch. He was a fourteenth century French man from Montpellier who left his father's house to become a pilgrim. He went to Rome and then to other Italian cities
where he healed plague patients simply with the sign of the cross. He himself then fell ill with the plague and miraculously was healed. Later he died in prison, not recognized by his own family members.
His body is now in Venice, Italy, preserved in a church totally dedicated to him, together with the adjacent building Scuola Grande di San Rocco. Both are decorated especially by Jacopo Robusti (1518/19-1594) better known as Tintoretto, a
painter of the Venetian school of the Mannerist period.
In Italy alone, there are at least three thousand churches dedicated to the saint. It is therefore easy to find him represented in many paintings, altarpieces, frescoes and statues. But how may one recognize him? This article introduces the figure of Saint Roch, his iconographic attributes (such as the dog with the bread, the bubo on the thigh, and the angel) and how he is represented in Venetian figurative art of the 1500s by the great artist Tintoretto.