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Glossary

Selected words and phrases

clinical failure – when you develop new symptoms and illnesses even though you are on treatment. See virological failure.

TST – tuberculosis skin test

oesophagus – part of the gut between the throat and the stomach.

cubic millimitre (mm3) – a measure of a volume. Same as microlitre (µL) and million parts per litre (106/L). Practically, a drop of blood.

null hypothesis – in a study this sometimes just refers to the hypothesis, but more specifically it refers the idea that any difference between 2 study groups has only occurred by chance.