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The emotional effect of that result was considerable. Anderson told TIME that she felt as though she had received 20 years of her life back. The statement was not a literal medical calculation of extra life expectancy. Rather, it described the psychological difference between living with a disease she had once associated with an early death and learning that the infection was no longer detectable after treatment. For many years, she had described hepatitis C as a dark presence hanging over her future. Successful treatment allowed her to view that future from a substantially different perspective.
Her experience also illustrates why medical predictions need to be considered in the context of changing treatment. When Anderson was diagnosed around 2001, the therapies available for hepatitis C were very different from those that became available more than a decade later. A prognosis given at one point in medical history does not necessarily remain unchanged when new therapies transform the underlying disease. Anderson lived well beyond the roughly 10-year period she said had initially been discussed with her. She then benefited from medications that could not have been routinely offered in the same form when she first learned she had the virus. Her story therefore intersects directly with one of the most significant developments in modern antiviral medicine.
It would nevertheless be misleading to turn Anderson’s individual experience into a promise for every patient. Hepatitis C treatment is highly effective today, but each person’s medical circumstances can differ. Existing cirrhosis, other medical conditions, previous treatment and access to healthcare may affect the type of monitoring and care someone requires. Eliminating hepatitis C also does not necessarily reverse every bit of liver damage that developed before treatment. People who already have advanced liver disease can require continued medical follow-up even after successful antiviral therapy. Individual treatment decisions should therefore be made by qualified healthcare professionals.