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Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.
More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.