What is disease? How many types of diseases have you studied? Give examples.

Explanation

Disease (Old French disease `=` lack of ease ) is a disorder in a human, Animal or plant, by infection diet or by faulty functioins of a process.
Types of diseases (i) On the basis of duration: Acute or chronic diseases.
(ii) On the basis of period of occurrence. congenital and acquired diseases.
(iii) On the basis of causal agents. Infections disease be deficiency disease may be deficiency disease, metabolic disease, degenerative disease, allergy, cancer and injury.
Example of infectious disease. Influenza, tuberculosis,pneumonia.
Example of non -infectious disease. Cance, diabetes.