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.
Causes of the war. There was no single event that caused World War One (WWI). War happened because of several different events that took place in the years building up to 1914. Firstly, there was the role of empire.Great Britain, Germany, Austria-Hungary and Russia all had empires. This meant that they ruled many countries all over the world.owever, the trigger for the beginning of WWI occurred on 28 June 1914. Archduke Franz Ferdinand, the heir to the throne of Austria-Hungary, was shot while he was visiting Sarajevo in Bosnia. He was killed by a Serbian person, who thought that Serbia should control Bosnia instead of Austria.