Question

) what is an example of a non-infectious disease? options a) cystic fibrosis b) herpes c) common cold d) influenza

Answer 1

All the above given diseases except cystic fibrosis, are infectious that is they have a particular infectious agents. 1) Cystic fibrosis is a poly microbial disease and also a non infectious disease as it is inherited disease caused by mutations 2) Herpes is caused by herpes simplex virus which affects external genitalia, anal region, mucosal surfaces, skin and other parts of the body. The Herpes simplex virus can be spread by direct contact. 3)Common cold is a viral infectious disease of the upper respiratory tract with nose being the primary affected organ.4) Influenza is a contagious disease which is caused by the viral infection of the respiratory tract.  

Answer 2

Answer:

An example of a non-infectious disease is a) cystic fibrosis.  

Explanation:

Diseases are 2 types infectious and non-infectious. The infectious diseases are diseases that are cause by pathogens and can be contagious that are spread from person to person whereas the non-infectious diseases are caused internally due to impaired body metabolism, it spreads only hereditarily.

Cystic fibrosis is one such disease that causes thickening of the body fluids and thereby clogging the ducts of the organs.