Question

question #4 what is the chain of infection? question #5 list, in order, the six steps in the chain of infection.

Explanation:

The chain of infection is a series of steps that describe how an infectious disease is transmitted. The six - step chain includes the infectious agent, reservoir, portal of exit, mode of transmission, portal of entry, and susceptible host.

Answer:

Question #4: The chain of infection is a sequence of events that allows an infectious disease to spread from one host to another.
Question #5:

1. Infectious agent
2. Reservoir
3. Portal of exit
4. Mode of transmission
5. Portal of entry
6. Susceptible host