Glossary

HPV (human papillomavirus) – a family of viruses associated with cervical cancer and anal cancer and genital warts.

symptom – a sign of illness.

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.

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

axis – line on a graph to measure data. Graphs usually have a vertical axis (y-axis) and horizontal axis (x-axis). An axis should show what is being measured and the units of measurement, eg ‘time (in minutes)’.