Course name: Epidemiology and Control of Communicable DiseasesLecture on: Basic concept on communicable diseaseDR. MUHAMMAD TAREQUE HASANTEACHING ASSISTANTDEPARTMENT OF EPIDEMIOLOGYBUHS
ObjectivesDefinition of communicable diseaseTerminologies uses in communicable diseaseDifference between communicable and non-communicable diseaseClassification of communicable disease
Communicable diseaseAn illness due to a specific infectious agent or its toxic products capable of being directly or indirectly transmitted from man to man, animal to animal or from the environment ( through air, dust, soil, water, food, etc) to man or animal. ( WHO )Adisease which can get transmitted from one host or reservoir to another through transference of a sufficient quantity of the causative agent is called a communicable disease.eg, tetanus,malaria,enteric fever, tuberculosis etc.
TerminologyDisease: a condition of the body or some part or organ of the body in which its functions are disrupted or deranged. example: fever, Hepatitis etc.Illness: Subjective state of the person who feels aware of not being well.example: Due to the fever he is not feeling well today.Disease awarenessSickness: is the state of social dysfunction.example: Due to the fever he missed the class. Social dysfunction
Cont.Agent: An agent is a substance, which may be living, or non-living or a force, which is tangible or non-tangible, whose mere presence, relative excess or relative lack, is essential for the occurrence of disease or health related events which may or may not be immediately manifested.