The Chain of Infection

Question 1

Causative agent or the pathogen (prion, virus, bacterium, protozoan, fungus and anthropod)

Answer 1

Infectous agent

Question 2

Place where the pathogen lives, reproduces or simply exist (air, water, food, dust, animals)

Answer 2

Reservoir

Question 3

The route by which the pathogen leaves the reservoir (purges, blood, bodily fluids, urine, feces, skin lesions, vomit)

Answer 3

Portal of exit

Question 4

The many means by which the infectous agent move from one host to another

Answer 4

Mode of transmission

Question 5

Types of mode of transmission

Answer 5

1. Direct to skin to skin contact
2. Respiratory droplets
3. Airborne transmission
4. Blood transmission
5. Sexual transmission
6. Fecal-oral transmission

Question 6

Route where the pathogens enter the body

Answer 6

Portal of entry

Question 7

3 Portal of entry

Answer 7

1. Mucus membrane
2. Ingestion
3. Break in the skin

Question 8

Susceptible to a particular pathogen

Answer 8

Susceptible host