| 1. |
What are the types of diseases? Write a note on infectious diseases. |
|
Answer» There are many diseases. They are classified into two parts : (i) Acquired or Contagious Diseases. (ii) Heredity Diseases. (i) Acquired Diseases : These diseases develop after birth. They are preventable as well as curable. Cold, Cough, Fever, Diarrhoea, Malaria, Typhoid, Pneumonia, Tetanus, Jaundice, Leprosy, Polio, Eczema etc. are some of the acquired or infectious diseases. (ii) Hereditary Diseases : These diseases are present from birth and are transmitted from generation to generation e.g., Diabetes, Haemophilia etc. Infectious diseases are caused by virus, germs and different types of fungi. Infection of the diseases spreads by two ways : (a) Direct contact and (b) Indirect contact. Diseases spread by direct contact are Cold, Cough, Eczema, Influenza, T.B. etc. Malaria, Diarrhoea, Dysentry etc. are spread by indirect contact. |
|