Hepatitis A is a short term liver disease caused by the hepatitis A virus. Worldwide, an estimated 1.4 million cases of hepatitis A occur each year. Hepatitis A infection does not cause chronic liver disease and is rarely fatal, but the symptoms can be debilitating.
Hepatitis B is a liver disease caused by the hepatitis B virus. Hepatitis B infection can lead to long-term liver disease. Left unmanaged, it can result in cirrhosis or liver cancer. More than two billion people worldwide have been infected by hepatitis B and of these over 240 million are living with long-term (also known as chronic) hepatitis B.
Hepatitis C is a liver disease caused by the hepatitis C virus. A number of people will experience no symptoms, while others will experience symptoms ranging from mild to severe. Left unmanaged, hepatitis C can lead to scarring of the liver and serious liver disease. World-wide, there are an estimated 170 million people living with chronic (long-term) hepatitis C, with 3-4 million new infections a year.