Autoimmune disease through Treg loss and health through Treg renewal. Environmental factors (viral infection, toxic chemicals, trauma, etc.) can lead to triggering of an excess number of autoimmune effector T cells. These induce Treg anergy (see Figure 1) and Treg loss. The autoimmune effector excess can then bring about an autoimmune disease. In contrast, T cell and/or ergotope vaccination can activate Treg renewal (see Figure 1). The enhanced numbers of activated Tregs can inactivate autoimmune effector T cells, leading to the restoration of health.