Parotitis is related to orchitis and diffuse infiltrative lymphocytosis syndrome. An important gene associated with Parotitis is SPINK1 (Serine Peptidase Inhibitor Kazal Type 1), and among its related pathways/superpathways are Innate Immune System and Hematopoietic Stem Cells and Lineage-specific Markers. The drugs Immunologic Factors and Vaccines have been mentioned in the context of this disorder. Affiliated tissues include salivary gland and bone marrow, and related phenotypes are homeostasis/metabolism and immune system