The liver filters poisons from the blood and performs at least other important functions. That is why hepatitis inflammation of the liver can devastate a person’s health. Hepatitis may result from excessive alcohol consumption or exposure to toxins. Most often, though, viruses are the culprit. Scientists have identified five such viruses and believe that there are at least three more.
Five viruses are known to cause hepatitis, the three most common being designated A, B, and C. Other viruses are also suspected. The symptoms of all forms of hepatitis can be flu like and may or may not include Jaundice. Many people particularly children, have no symptoms. With hepatitis B and hepatitis C, the liver may already be several damaged by the time symptoms appear.
Just one of the five hepatitis B and virus (HBV)-kills at least 600,000 people a year, compared to the toll of taken by malaria. More than two billion people nearly one third of the world’s population have been infected with HBV, and most recovered within months. For about 350 millions, however the disease became chronic for the rest of their lives, whether they have symptoms or not, they will have the potential to infect others.
Proper medical care, started early, can help some with chronic HBV to ward off serious liver damage, but more are unaware that they have been infected, as only a specific blood test can detect HBV. Even routine liver function test may come back normal. Thus, HBV can be a silent killer, striking without warning. Obvious symptoms may not appear until after infection. By then, either cirrhosis or cancer of the liver may be developed. These diseases take the life of 1 in 4 HBV carriers.