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Glossary

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stage (staging) – the stage of hepatitis infection refers to the amount of scaring (fibrosis), from results from a biposy. It is usually measured on the Metavir scale of 0 to 4, where 0 represents no scarring and 4 cirrhosis, or on the Knodell scale of 0 to 6, where 0 is no scarring and 6 cirrhosis. See grading.

escape mutation – a mutation or change in the genetic structure of HIV that makes it easier to evade the persons immune system (rather than a mutation that stops an HIV drug from working).

diagnosis – identifying the cause of an illness.

Minimum Effective Concentration (MEC) – the lower level of a drug in the body that will still be effective.

What happens when you take a drug?

encephalitis – inflammation of the brain.