Select the step in the Chain of infection that the examples listed would fall under and write it in blank below.

A. infectious agent

B. reservoir

C. portal of exit

D. mode of transmission

E. portal of entry

F. susceptible host

I need a little help on a few of these such as dirty surfaces

(I will try to attach an image below)

Select the step in the Chain of infection that the examples listed would fall under and write it in blank belowA infectious agentB reservoirC portal of exitD mo class=