 SCP-407 is a song in an unidentified language, seemingly sung a cappella. During the first minute of exposure, all multicellular life forms seem to become healthier. During the second and third minute of exposure, subjects start experiencing unnecessary unrestrained cell growth, manifesting and quickly advancing dermal growths. These growths seem to mostly be benign tumors. During the fourth minute of exposure, increased bacterial and fungal growth occurs, creating conditions that grow increasingly dangerous for all exposed life, even in their new healthier states.