Answer:
Virus are a type of infectious agents it in almost all scenarios it will infect as many as cells it can before your WBC's can kill them
And in fact you are right now only in the state of Disease free. Every second your body is fighting off diseases. So to support your immune system eat Lots of Healthy food and stay safe!
The andswer to the question is Endocrinology!
The right answer is Exocytosis.
In a eukaryotic cell, exocytosis is a mechanism of material release by invagination of the cytoplasmic membrane. It consists of a spillage of the products of a vesicle outside the cell, by fusion of the plasma membrane with the membrane of this vesicle.
Its opposite (or reverse) is endocytosis. In the case of a vacuole, see the exocytosis vacuole.