Viral Diseases

Topics: Infection, Inflammation, Hepatitis Pages: 2 (295 words) Published: July 12, 2012
What causes viral diseases?
Viral infections occur when a virus enters the body and invades the inside of the body’s cells in order to reproduce. If the body’s immune system is unable to fight off the virus, it multiplies and spreads to other cells, repeating the process and leading to a widespread infection. Signs & Symptoms of rabies

One of the most distinctive signs of a rabies infection is a tingling or twitching sensation around the area of the animal bite. In people, symptoms of rabies include

Abnormal Postures & Thoughts
Difficulty in Speaking
Excessive Movements
Extreme Sensitivity to bright lights, sounds, touch
Increased Production of Saliva
Loss of Appetite
Muscle Aches and Spasms
In the advanced stage of the infection, these symptoms may develop:

Extreme breathing problem
Increased production of saliva causing the "foaming at the mouth" Double vision
Problems moving facial muscles

epatitis (plural hepatitides) is a medical condition defined by the inflammation of the liver and characterized by the presence of inflammatory cells in the tissue of the organ. The name is from the Greek hepar (ἧπαρ), the root being hepat- (ἡπατ-), meaning liver, and suffix -itis, meaning "inflammation" (c. 1727).[1] The condition can be self-limiting (healing on its own) or can progress to fibrosis (scarring) and cirrhosis. Hepatitis may occur with limited or no symptoms, but often leads to jaundice, anorexia (poor appetite) and malaise. Hepatitis is acute when it lasts less than six months and chronic when it persists longer. A group of viruses known as the hepatitis viruses cause most cases of hepatitis worldwide, but it can also be due to toxins (notably alcohol, certain medications, some industrial organic solvents and plants), other infections and autoimmune diseases.
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