A Student Nurse Asks If an Infectious Disease Is the Same

A student nurse asks if an infectious disease is the same thing as a communicable disease. The nurse explains that an infectious disease is not necessarily a communicable disease. Which factor could the nurse point out that a communicable disease must have that an infectious disease would not have to have? (Select all that apply.)

A) Pathogenic microorganism
B) Portal of exit from the infected person
C) Means of transmission
D) Portal of entry to a susceptible host
E) Organism that harbors the infectious agent