Glossary

mitochondria – energy producing factories that live inside other cells.

antigen – a protein found on the surface of a virus or bacteria. It is recognised by the immune system which then generates antibodies.

pulmonary – relating to the lungs.

benign – not harmful.

candida – fungus (yeast) infection that affects the mouth and throat, gullet, sinuses, genital organs and – rarely – the brain. Also called ‘thrush’.