Question

Becoming exposed to or infected with an infectious microbe does not necessarily mean developing

noticeable symptoms . Justify .

Answer 1

Hi...

Our immune system protects us against various infectious diseases. The infectious agents are viruses, bacteria and parasites. The white blood cells of the defence system are produced in the marrow of our bones. The cells are carried to the blood to specialized organs where they
develop immune responses against infections.
Some WBCs like macrophages destroy and engulf bacteria and damaged celis. The body cells produce antibodies which can neutralise viruses, bacteria or toxic proteins in blood and body fluids.
Infectious diseases may be self-limiting. It means that our immune system can successfully eliminate pathogens. Many viral diseases are self-limiting. Other infections may require treatment with ntimicrobial drugs appropriate for specific pathogen.
Hence, it explains that becoming exposed to or infected even with an infectious microbe may not cause noticeable disease. In this case, our body—immumty plays an essential role.

Hope it helps you. :-)

Answer 2

Becoming exposed to an infectious microbe needn't always shows symptoms. It depends on our immune system. An active immune system will recruit many cells to the affected tissue to kill the disease causing cells. This process is called inflammation. Inflammation will have many local effects such as swelling and pain and general effects such as fever.

We might get exposed to any particular microbe however we are not infected by it if we have an active immune system. For this good nourishment is required.

Sometimes for diseases the symptoms may remain unnoticed and may lead to serious situations like cancer.