Glossary

protozoa – a single-celled animals that are larger and more complex than bacteria.

log value – a number expressed as a factor of 10 – ie 2 logs = 10 x 10=100; 3 logs = 10 x 10 x 10=1000. This measurement is used when needing to include very large and very small numbers on the same scale. A reduction by one log is a 90% reduction. A reduction by two logs is a 99% reduction etc.

Log conversion table.

toxicity – medical word for side effect, the potential harm a drug can cause.

anti-fungal – drug used to treat fungus infections.

randomised controlled trial (RCT) – a type of research study that produces very high quality results. RCTs are often called gold-standard – ie the best evidence.

Study participants are randomly assigned to one of more study arm. One or more arms might use new drugs and another (the control arm) maybe uses the standard of care, or maybe a placebo.

See: randomise