Tiny organisms that cannot be seen by the naked eye.

Where do we find these tiny living organisms?

Harmful microbes are also called

Communicable diseases are diseases

The odd one here  is

Animals that carry disease causing microbes are called

If a disease spreads to many people at the same time in a place, it is called

Dysentery and Diarrhoea are examples of diseases spread through

Corona virus is spread to the whole world, so it is called a 

The process in which a small amount of the pathogen is injected into a person to develop immunity is called