infectious diseases can delay growth, particularly when coupled with: technologies introduced by western culture. too much protein consumption. poor nutrition. adequate vitamin d. humidity.

Parasitic infection because a parasitic disease, also known as parasitosis,  and aninfectious disease caused or transmitted by aparasite. Many parasites do not cause diseases.Parasitic diseases can affect practically all living organisms, including plants and mammals.
The study of parasitic diseases is called parasitology.

the glands which are associated with each description is given below:

pancreas - is an endocrine and exocrine gland that secretes juices with enzymes for digestion. salivary glands- with protection and digestion in the mouth. liver- secretes bile for digestion.   lachrymal glands - secrete tears to moisten eyes and protect them from particles and infection.   sweat gland -regulates water, salt, and temperature. oil glands - to form a protective barrier on the skin.   goblet cells - secrete mucus for protection.