Chain of infection

Question 1

1: Causative Agent

Answer 1

the pathogen (virus, bacteria, fungus, parasite)

Question 2

2: Reservoir

Answer 2

area the pathogen can grow (humans, animals, food)

Question 3

3: Portal of exit

Answer 3

means by which the pathogen can leave the reservoir (skin, mouth, blood)

Question 4

4: Mode of transmission

Answer 4

how the pathogen (contact, droplet, airborne)

Question 5

5: Portal of entry

Answer 5

how the pathogen can get to the host (same as portal of exit)

Question 6

6: Susceptible host

Answer 6

host left with compromised defense mechanisms