The standard system for classifying splenomegaly on radiography is: 1  Normal (not splenomegaly): the largest dimension is less than 11 cm. 2  Moderate splenomegaly: the largest dimension is between 11â20 cm. 3  Severe splenomegaly: the largest dimension is greater than 20 cm.
The EBV germs transfer when contact is made with the saliva of the infected person, such as through kissing. Once infected, the Epstein-Barr virus stays in the body for life.The most common EBV among teenagers and young adults is infectious mononucleosis.he continual production of saliva keeps the mouth moist. Many communicable diseases, however, find passage from one person to another through contact with saliva, such as when kissing or coughing.
Childhood viruses, such as measles and mumps. 3. Arboviruses, which are spread by mosquitoes, ticks and other insects, and include Japanese encephalitis, West Nile encephalitis and tick borne encephalitis. Secondary (post-infectious) encephalitis: could be caused by a complication of a viral infection. Symptoms start to appear days and even weeks after the initial infection. The patient's immune system treats healthy brain cells as foreign organisms that need to be destroyed, and attacks them.