During the 15th century there was an airborne plague that was highly infectious and caused many to die throughout Europe. It was a difficult era, and many priests wrote prayers against the plague, in hopes that God would take away the deadly disease.
One such priest was Jacopo Soldi, a Servite friar and physician. According to Msgr. Ronny Jenkins, Dean of the School of Canon Law at the Catholic University of America, he “wrote a work on the plague, which was then ravaging Florence. He ended it with a prayer now relevant in a time of COVID-19.”