Question

Q11. Communicable diseases are those which can spread from an infected person to healthy but susceptible persons. Answer the following questions:
1. Enlist various modes of spread of diseases giving one example of each.
2. Why are communicable diseases also called infectious diseases?
​

Answer 1

ans 1)modes of transfer

direct contact: AIDS,TB

indirect contact:-

1) air- flu

2)water- pneumonia

3)food- upset stomach

ans 2) they are known as infectious diseases because they can transfer from an infected person to a healthy person and make the healthy person sick as well.