Question

model 2 - six modes of disease transmission

1. model 2 illustrates several methods by which diseases may be transmitted.

a. list the six modes of disease transmission shown in model 2.
b. which of these modes of transmission require a bodily opening, either natural or artificial?

1. an organism that is used by a pathogen to move from one person to another is called a vector.

a. what vector is shown in model 2?

Explanation:

• For part a, we just need to read the labels in the model.
• For part b, we consider how each mode enters the body. Airborne (nose/mouth - natural), foodborne/waterborne (mouth - natural), bloodborne (artificial - e.g., needle), sexual (natural - reproductive organs).
• For part 9a, we look at the label "vector" in the model.

Answer:

8.
a. Airborne, vector, contact, sexual, bloodborne, foodborne or waterborne
b. Airborne, foodborne or waterborne, bloodborne, sexual
9.
a. Mosquito (assuming the vector - like insect - shown in the model is a mosquito as it's a common vector example in such diagrams)