Control

Measures taken to reduce the likelihood of getting infected after exposure, or methods employed to lessen the severity of the disease after getting infected.

Pre-clinical

Time period before a diagnostic test can detect the presence of a disease. An individual may still be infectious during this period of time.

Prevention

Intervention to reduce the risk of exposure or the susceptibility (likelihood of getting infected with a pathogen after exposure) of an individual to a pathogen.

Seroprotection

A measure of the immune response (antibody titre) of an individual against a pathogen, based on a 50% reduction in disease upon exposure to infection. When an individual is seroprotected, there is at least moderate (50%) chance that the individual is clinically protected against the disease.