A number of clinically relevant models of mucosal candidiasis have been established. However, the development of mucosal infection models generally requires the use of immunosuppressive agents, antibiotic, estrogen treatment, or the use of germ-free animals.Local rather than systemic immunity is critical for antiCandida defense in the vaginal mucosa. Estrogen transforms the columnar epithelium into thicker stratified squamous epithelium and increases the glycogen content, pH, and growth substrates, all of which facilitate C. albicans infection. Estrogen may also inhibit innate or adaptive immune defenses, thus facilitating tissue evasion, but in the absence of pseudoestrus, vaginal infections are short-lived.The use of immunosuppressive is a valid method of quickly inducing fungal colonization. In rodents, CPA inhibits the production of antibodies, and is active in cells with high mitotic activity inhibiting cellular and humoral immune responses. Studies have shown that immunosuppression is necessary to the success of VVC model.