1. disease-causing agent non-infectious

2. an animal or insect that is known to transmit a specific disease pathogen

3. white blood cells that eliminate the chances of infection vector

4. non-communicable; cannot be spread through casual contact phagocytes

Marco is considering leaving his wife. she yells at him, throws objects against the wall, hits the dog, and tells marco that he is ugly. which factor is an indication that marco should leave right away and seek ? marco’s wife is unwilling to change. marco may be in physical danger. marco’s wife is ignoring him. marco’s friends tell him that he should leave the relationship.