Susan C. Baker throughout the body. This disease also affects skin, mucous membranes, and the body's lymph nodes. Baker's lab is investigating the possibility of a viral causative agent for the disease. This disease mostly affects children under the age of 5. Causes remain unknown, however it is treatable within days if the symptoms are recognized early enough. If left untreated, it can lead to serious problems for the heart. Baker has also worked closely with coronaviruses, the causative agent of Severe Acute Respiratory Syndrome. These are viruses that affect mostly the upper respiratory and GI tract of humans and are named because
Carl Ritter Comparing Geography to language theory or philosophy, he believed that it was necessary to understand each "Erdgegend" (area of the Earth) and its characteristic appearances and natural relationships without relying on the absolute work of pure description and classification. In partitioning the Earth into "Erdgegende" he has developed a theory of area, which he views as indispensable to geographical inquiry. Furthermore, Ritter believed that areas existed a priori and were formed by humans. Constructing a geographical theory around the area allowed Ritter to make the comparative work would seek to do in the conclusion to his great work. Elevating the