Q- Name any two ways through which infectious diseases spread?
Answer- Infectious diseases are those diseases that are caused due to successive entry and multiplication of certain micro-organisms inside the body. Some of the examples of infectious disease are Bacterial cholera and viral AIDS.
There are several ways through which germs of infectious diseases spread. According to the question, some of the ways through which infectious diseases spread are as follows:
1. Germs can enter in human body through droplet infection. The diseases spread through droplet infection are pneumonia, whooping cough and tuberculosis.
2. Germs can enter in human body with the help of certain vectors. The diseases spread through vectors are Malaria, Dengue and sleeping sickness.
3. Germs can enter in human body by the medium of direct contact. If any healthy person came in contact with any infected person so the germs from infected person’s body move into body of healthy person.
The diseases spread through this medium are: Ringworm, Chickenpox, measles e.t.c. .