The EBV Infection Spectrum. EBV has a particular affinity for the cells that line the mouth and throat. Once the virus inserts itself into to a specialized immune lymphocyte (B cell), it hijacks the DNA to take control of the cell forever. When cells of the mouth and throat naturally slough off, EBV is shed into saliva.
Causing the Civil War. Historically, textbooks have taught that incompatibility between northern and southern economies caused the Civil War. The industrial revolution in the North, during the first few decades of the 19th century, brought about a machine age economy that relied on wage laborers, not slaves.
Four underlying causes of war. The assassination of Archduke Franz Ferdinand signalled the rapid slide into world war, but this wasn't the only cause. There were underlying causes in the run-up to the First World War. In the 1930s, historians argued that there were four underlying long-term causes of the First World War: 1  Nationalism-the belief that your country is better than others. 2  This made nations assertive and aggressive.