Becoming exposed to or infected with an infectious microbe does not necessarily mean developing noticeable disease. Explain.

(N/A) Our body possesses a robust immune system that constantly fights against invading microbes.
We have specialized cells,such as white blood cells,that are designed to identify and eliminate pathogenic microbes.
When infectious microbes enter the body,these immune cells become active and attempt to destroy the pathogens.
If the immune system is successful in removing or neutralizing the pathogen before it can cause significant damage or multiply uncontrollably,we remain disease-free.
Therefore,exposure to infectious microbes does not always lead to the development of a noticeable disease.