https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13983414
Saint Camillus de Lellis rescuing lives and offering shelter from the flooding Tiber, Rome. Line engraving by J. and J. Klauber.
Original public domain image from Wellcome Collection
Public DomainFree CC0 image for Personal and Business use