Veterinary Epidemiology and Zoonosis

CONTROL

• Control defined as all measures used to reduce the frequency of illness already present in a population, by reducing or eliminating causes of illness, ultimately to levels of little or no consequences.
• Normally the control programmes follow the prevention.
• Control is the reduction of the morbidity and mortality from disease, and is a general term embracing all measures­ intended to interfere with the unrestrained occurrence of disease, whatever may be its cause.
• It can be achieved by treating diseased animals, which therefore reduces disease prevalence and by preventing disease, which therefore reduces both incidence and prevalence.