The quality of being morbid; an attitude or state of mind marked by gloom.
The quality of being unhealthful or diseased, sometimes including the cause.
An occurrence of illness or disease, or a single symptom of that illness.
Adverse effects caused by a medical treatment such as surgery.
The incidence of a disease, as a rate of a population which is affected.
The sickness rate of a population.
Great sadness or distress; a misfortune causing such sadness.
A curse; a malediction.
Calamity, trouble.