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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
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.
Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.
Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.