morbiidsus -ebatäpne üldtermin, millega väljendatakse isiku sagedat haigestumist
the ratio of the total number of patients with a given disease to the total population. It is expressed either as prevalence at a given time or as incidence during a given period.
For coccidiostats and other medicinal substances, importance should primarily be attached to evidence of the specific effects and particularly prophylactic properties (e.g. morbidity, oocyst count and lesion score).