Hashimoto's Thyroiditis. Also called Hashimoto's disease, Hashimoto's thyroiditis is an autoimmune disease, a disorder in which the immune system turns against the body's own tissues. In people with Hashimoto's, the immune system attacks the thyroid.
According to the U.S. Census Bureau, the county has a total area of 4,751 square miles (12,310 km 2), of which 4,058 square miles (10,510 km 2) is land and 693 square miles (1,790 km 2) (15%) is water.
According to the U.S. Census Bureau, the county has a total area of 8,163 square miles (21,140 km2), of which 8,132 square miles (21,060 km2) is land and 31 square miles (80 km2) (0.4%) is water. 1  It is the third-largest county by area in California. Its area is nearly the size of the state of New Hampshire; it extends: