What is the difference between infectious disease and chronic disease?

Infectious disease: Unrelated terms. Infectious disease is a disease that is affecting the body as a result of a bacterial, viral or fungal infection. It could be an acute or a chronic one. Acute means a sudden onset usually within a few hours to days. Chronic usually refers to more than three weeks. This may be an infectious disease or otherwise, like acute heart attack or chronic anemia.

See below: An infectious disease is a disease caused by a biological agent such as a virus, bacteria, fungus, protozoa or parasite. A chronic disease is a disease that has persisted for a prolonged time such as kidney failure on dialysis, diabetes, COPD