The efficiency and specificity of adaptive immune defenses and immunological memory improve each time a particular pathogen is encountered because

Can someone give me one specific health problem, and explain it. !

To avoid food poisoning, perishable items should not be stored in the refrigerator for more than days.

Insulin is a peptide therapeutic used to manage type 1 diabetes, which affects more than 20 million people worldwide according to the international diabetes federation. a significant limitation to the broad distribution and use of insulin to treat type 1 diabetes is the fact that it must be administered by injection rather than orally. why is insulin administered by injection and not orally?