Figure 9: Scanning electron microscopy of E. granulosus murine cysts incubated in vitro with thymol and essential oils of T. vulgaris and O. vulgare. (a) Control murine cyst with an intact germinal layer (6 days p.i., gl: germinal layer; 430x). (b) Cyst incubated with T. vulgaris during 6 days (350x). The germinal layer is altered. (c) Cyst exposed to O. vulgare after 6 days p.i. (500x). (d) Extensive damage of the germinal layer (thymol, 3 days p.i., 300x). Only cellular debris could be observed.