Which of the following pairs contains an infections and a non- infectious disease respectively? a. Typhoid and AIDS b. AIDS and cancer c. Pneumonia and malaria d. Cancer and malaria
Option B. Diseases are broadly classified into infectious and non-infectious diseases. Infectious diseases: These diseases spread from one person to another and hence are called infectious diseases. They are caused by microorganisms called pathogens such as bacteria, protozoans, viruses, etc.Examples: AIDS, pneumonia, malaria and typhoid. AIDS is a contagious and fatal disease caused by HIV. HIV can be transmitted by the exchange of body fluids in the following ways: sexual contact with the infected person transfusion of blood or blood products from an infected to a healthy person from an infected mother to her child during birth by use of unsterilised needles which have been used by a person infected with HIV Non-infectious diseases: They do not spread to others and they are restricted within a person who has contracted them. Examples: Diabetes, cancer etc Cancer is one of the most dreaded diseases of human beings and a major cause of death all over the world. In this disease, cells divide uncontrollably leading to the formation of tumors.
