•Hepatitis B is caused by infection with the hepatitis B virus (HBV). This infection has 2 phases: acute and chronic.
◦Acute (new, short-term) hepatitis B occurs shortly after exposure to the virus. A small number of people develop a very severe, life-threatening form of acute hepatitis.
◦Chronic (ongoing, long-term) hepatitis B is an infection with HBV that lasts longer than 6 months. Once the infection becomes chronic, it may never go away completely.
◦About 90-95% of people who are infected are able to fight off the virus so their infection never becomes chronic. Only about 5-10 percent of adults infected with HBV go on to develop chronic infection.
•People with chronic HBV infection are called chronic carriers. About two-thirds of these people do not themselves get sick or die of the virus, but they can transmit it to other people. The remaining one third develop chronic hepatitis B, a disease of the liver that can be very serious.
For more information see. https://www.drugs.com/enc/hepatitis.html
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